Which sentence is punctuated correctly?

a. i understand that dr elliott earned his m. d. at columbia university.
b. i understand that dr. elliott earned his m. d. at columbia university.
c. i understand that dr, elliott earned his md at columbia university.

Question 4 of 20 2 points which best explains why the delivery of william faulkner's nobel prize speech does not support its rhetoric and purpose? o a. the manner in which he speaks does not match the confidence of the message. o b. the language is too lofty and poetic for the purpose of the speech. o c. the purpose is to congratulate, but the delivery fails in its missionn. o d. the southern accent makes it difficult for the listener to understand submit