Which sentence is punctuated correctly?

A.
My fellow drummer asked me in a whisper, "Do you think he is being unreasonable"?

B.
"Do you mean through the weekend as well" asked a timid violinist.

C.
"Precisely," boomed the conductor, "and there should be no excuses!"

D.
The conductor urged "All musicians should continue to practice for the remainder of the week."

Question

Which sentence is punctuated correctly?	
 
 A.
My fellow drummer asked me in a whisper, "Do you think he is being unreasonable"?
 
 B.
"Do you mean through the weekend as well" asked a timid violinist.
 
 C.
"Precisely," boomed the conductor, "and there should be no excuses!"
 
 D.
The conductor urged "All musicians should continue to practice for the remainder of the week."