There are four sentences A, B, C, D where the underlined word is used either correctly or incorrectly. Choose the option which lists all the sentences where the underlined word is used correctly in a sentence.
A. Cassie drew her brows down to feign a stern expression.
B. Her heartbeat was feign and slow.
C. I wish you wouldn't feign illness on every first day of school.
D. My cousin would always feign excitement when we came to visit, but I knew she really didn't like sharing her room.