The correct answer is A. frank.

A candid politician is someone who is honest and open in their speech and actions. They are not afraid to speak their mind, even if it is unpopular. They are also not afraid to admit when they are wrong.

B. faithful is not the correct answer because a faithful politician is someone who is loyal to their party and their constituents. They are not necessarily honest or open in their speech and actions.

C. fearless is not the correct answer because a fearless politician is someone who is not afraid to take risks. They are not necessarily honest or open in their speech and actions.

D. spoken is not the correct answer because a spoken politician is someone who is good at public speaking. They are not necessarily honest or open in their speech and actions.