Michael told Ethan that he needs to return his overdue library book.

Which of the following revisions to the sentence makes the relationship between the pronoun and its antecedent most clear?
O a
Michael told Ethan to return his overdue library book.
• b Michael told Ethan that his overdue library book needs returning
O c
Michael told Ethan that they need to return the overdue library book.
O d Michael told Ethan, *I need to return my overdue library book."

b. Michael told Ethan that his overdue library book needs returning.