Which answer is a correctly punctuated compound sentence?

A.
David's wisdom teeth hurt; the dentist thinks they may need to be removed.

B.
David's wisdom teeth hurt and the dentist thinks they may need to be removed.

C.
David's wisdom teeth hurt the dentist thinks they may need to be removed.

D.
David's wisdom teeth hurt, the dentist thinks they may need to be removed.

Question

Which answer is a correctly punctuated compound sentence?	
 
 A.
David's wisdom teeth hurt; the dentist thinks they may need to be removed.
 
 B.
David's wisdom teeth hurt and the dentist thinks they may need to be removed.
 
 C.
David's wisdom teeth hurt the dentist thinks they may need to be removed.
 
 D.
David's wisdom teeth hurt, the dentist thinks they may need to be removed.

anonymous · Answer

I will give medals

anonymous · Answer

A, C, and D would need semi-colons.
B could use a comma before "and," but it is optional.

anonymous · Answer

the answer is A, You have to use the semi col