According to a recent poll, it's becoming more difficult for books to compete against high-tech developments such as the Internet. _______ books more popular, publishers are trying everything from publishing more large-type books for aging readers by copying Hollywood and concentrating on sequels, spin-offs, and branding---linking books to movies and television.
(C) To make
(D) In making
我個人認為(B) Making 和 (C) To make應該都是對的，但是不知二者在上述句子中意義上或文法上有何不同。請詳述二者的不同，謝謝。