Answer:
They are cross and ungrateful toward Bilbo and his efforts.
"He had a famished and a savage look like a dog that has been chained and forgotten in a kennel for a week. It was Thorin, but you could only have told it by his golden chain, and by the colour of his now dirty and tattered sky-blue hood with its tarnished silver tassel. It was some time before he would be even polite to the hobbit."
“'I hope I never smell the smell of apples again!' said Fili. 'My tub was full of it. To smell apples everlastingly when you can scarcely move and are cold and sick with hunger is maddening. I could eat anything in the wide world now, for hours on end—but not an apple!'”
Step-by-step explanation:
Though I may not have read the story, I logically guessed based on the passages given. What I put below is how I answered the question, part A being the process of elimination.
PART A
Possible/Correct Answer - They are cross and ungrateful toward Bilbo and his efforts.
Reason:
Based on the second and fourth excerpts from the passage, they seemed really unhappy, even if it wasn't specifically in those two. Some examples were how the second stated that Thorin would take some time before he would be polite to the hobbit, which shows that he was very unhappy despite having been saved. In the fourth excerpt, an example would be how Fili kept complaining about the apples, which shows he was also ungrateful since he kept complaining about the apples rather than thanking Bilbo for saving him, even if it may be in a putrid way.
Not Possible Answer - They are relieved but worried about the next leg of the trip.
Reason:
You can eliminate this option because not once did it mention the dwarves being relieved as they did not feel anything pleasant towards Bilbo for saving them.
Not Possible Answer - They are highly confused and uncertain about where they are.
Reason:
Though it does mention that they were in the darkness, do not pick this option because of that. You can see this because they just kept on knocking down the barrels until they found the other person, which proves they were not confused as they exactly what to do and did not once stop to consider anything.
Not Possible Answer - They are happy and thankful that they have made it to safety.
Reason:
The dwarves, based on excerpts 2 and 4, were not at all happy with Bilbo as they were either complaining or being mean to Bilbo, which proves this one as not correct.
PART B
Ans. You can do excerpts 2 and 4. (You can change them if you like, but it is just what I think.)
Reason:
Since we previously chose the first one as our answer, we should choose two excerpts that support how they were ungrateful, and these two are excerpts 2 and 4. This is because they show that the dwarves are ungrateful as they are either complaining or being rude. For example, Fili continuously complains about the apples rather than being thankful for being saved from captivity, just like how Thorin does not want to be nice to Bilbo for a period of time as he had become filthy. So, once again, your answers would be 2 and 4.
SIDENOTE: Please know that if it says "for saving their lives," it should be something like helping them escape, or whatever you think should replace it.
Hope this helped because this took a long time (~ ̄▽ ̄)~