The answer is C! I read this book.
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.
Impromptu is an unrehearsed speech. Not rehearsing would not allow speakers to gather 100% of their thoughts.
Visualize bc the pictures help to view the perspective using you eye balls