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.
To pollinate something is to drop off pollen into a flower, stigma, ovule, or plant. After pollination occurs the flower, stigma, ect. is ready to be fertilized.<span />