HELP FAST PLEASEE


Which identifies the compound sentence that is punctuated correctly?

AOnce each year Assateague firefighters round up the ponies, and some are sold at auction.

BOnce each year Assateague firefighters round up the ponies and sell some at auction.

COnce each year Assateague firefighters round up and sell some ponies at auction.

DOnce each year Assateague firefighters round up the ponies, set up an auction, and sell some.