Final answer:
The sentence with a misplaced modifier is C) They gave sandwiches to the children on paper plates, because it suggests that the children, not the sandwiches, are on paper plates.
Step-by-step explanation:
The sentence with a misplaced modifier is C) They gave sandwiches to the children on paper plates. The modifier on paper plates seems to describe the children rather than the sandwiches, suggesting that the children, not the sandwiches, are on paper plates. To correct the misplaced modifier, the sentence could be rewritten as They gave sandwiches on paper plates to the children, which makes it clear that the sandwiches were the ones on the paper plates.