Complete the following sentence using the most appropriate words in all four blanks.
A discerning scholar presents a _______ argument supported by _______ evidence and maintains a/an _______ tone even when confronted with conflicting viewpoints during rigorous academic discussions and peer evaluations.

A

cohesive / verifiable / authoritative

B

coherent / legitimate / decorous

C

consistent / verifiable / civil

D

cogent / credible / respectful