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.

Read the passage below and answer the question. jake was incredibly loquacious. he once gave a twenty minute monologue about his favorite movie. in the passage above, the context clue used to find the definition of loquacious is an example of an antonym an example a synonym the tone of the whole phrase