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.
There are many grammar rules but the most essential ones are: nouns, adjectives, verbs, punctuation, and speech.
The occurrence of the same letter or sound closely connected words
Wasn’t sure if u needed colored ones
It has to be A since it's the only one that describes both the financial effects and emotional effects because of the inappropriate words.