Answer:
The reader can see how Shania's thoughts and feelings about the field trip change over time.
Step-by-step explanation:
Whenever any work of literature or text is written from a particular person/ character's point of view, then it is mostly deemed a first-person narrative voice. This form of narration allows an insight into the feelings and thoughts of the speaker and not much of the other characters.
In Shania's Diary, the author uses Shania as the narrative voice. This allows us access to what she is thinking and feeling. And with this access, we can know and see what she thinks about the field trip. And we are also able to see how her feelings and thoughts change about the trip changed over time.
Thus, the correct answer is the second option.