In the sentence, the pronoun him has an ambiguous antecedent.

A.Bill and Jayden shared the book that belongs to him.

B.Which version of the sentence is most clear?

C.Bill and Jayden shared the book that he owns.

D.Bill and Jayden shared his book.

E.Bill and Jayden shared the book that belongs to Jayden.

F.His book was shared by Bill and Jayden.