The text says that "as women fought to earn more rights, such as the right to vote, quilts often played an important role in their cause." Based on the text, what role did quilts often play in women's causes? A. Homemade quilts were used to reduce the need for quilts made in factories that mistreated women workers. B. Messages on quilts were the clearest and most effective way to get powerful men to notice and support women's causes. C. Quilts both showed support for and raised awareness of the goals and ideals of women's movements. D. Quilts with secret messages were used by women to communicate their movements' strategies to each other without letting other people know.