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 MD at Columbia University.

C.
I understand that Dr. Elliott earned his M.D. at Columbia University.

Question

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 MD at Columbia University.
 
 C.
I understand that Dr. Elliott earned his M.D. at Columbia University.

muzzack · Answer

It is well B in a sentence it must have a subject verb and a noun and has to have very well puntuaction so in it will be b

anonymous · Answer

thanks