Answer:
1, 2, and 5
Step-by-step explanation:
We can tell 1 is true from this phrase in the passage. "Half an hour after Otzi dined, the killer came along..."
The phrase "...and shot him in the back" means the second statement is true as well.
Lastly, we know 5 is also true from the phrase "The arrow went under his left armpit..."
So, the answers are 1, 2, and 5.
1) He had just eaten.
2) He was shot in the back.
5) The arrow went under his left armpit.
Good luck ^^