Answer:
You are basically analyzing the text, by summarizing what the author has said.
For A) to be correct, it should be "The deli Worker gave him and her free slice of ham. For B) to be correct, it should be Eric told them about his Journey. For D) is also wrong! With that being said, C has the correct object pronouns.
Answer:
The theme of the story is "trusting family and friends when you need them"
It is easy to identify the theme, since the main character goes through an ordeal when he gets lost; however, relying on a friend lets him find the way out of the situation.
Building long-life relationships is also shown in the story as a virtue, since the character had a shy personality and it was really hard for him to make friends.
It is subjective because in research scientist usually write in detail.