The correct answer is C) Fire and emergency signals. The fire control plan is a diagram of the vessel's fire detection and suppression systems, including the locations of fire extinguishers, fire hydrants, and other firefighting equipment. It does not typically include information about fire and emergency signals, as those are usually covered in separate emergency procedures or signaling instructions. The other options - dry chemical monitor, gas detector, and the fire control plan itself - are all items that would be identified on the fire control plan.