Which sentence uses punctuation correctly?

A. The Acorn Festival which is held every October is my favorite event.

B. The Acorn Festival, which is held every October, is my favorite event.

C. The Acorn Festival which is held every October, is my favorite event.

Question

Which sentence uses punctuation correctly?	
 
 A. The Acorn Festival which is held every October is my favorite event.
 
 B. The Acorn Festival, which is held every October, is my favorite event.
 
 C. The Acorn Festival which is held every October, is my favorite event.

anonymous · Answer

B. The Acorn Festival, which is held every October, is my favorite event.

crazycocob · Answer

b