Mark and Sally (goes) to the event yearly, but this year Sally (have) a scheduling conflict and (needs) to decide between the two invitations. what is the correct use of verb Agreement for the text in bracket

When the author quotes the actress sarah brown as saying, i truly believe that this film gives an important message to audiences, the author is using a) repetition. b) a testimonial. c) an ethical appeal. d) the bandwagon method.