The correct answer is D. Frank.
A candid person is honest and open, even if what they say is not always pleasant. They are not afraid to speak their mind, even if it means disagreeing with others.
Rude people are not considerate of others’ feelings. They may say or do things that are hurtful or offensive.
Impertinent people are disrespectful. They may interrupt others, talk over them, or make demands without considering the other person’s feelings.
Blunt people are direct and to the point, sometimes to the point of being rude. They may say things that are hurtful or offensive without realizing it.
Frank people are honest and open, but they are also respectful of others’ feelings. They will tell you the truth, even if it is not what you want to hear, but they will do so in a way that is not hurtful or offensive.