An integral part of a blowout preventer that serves as the closing element on an open hole, and whose ends do not fit around the drill pipe but seal against each other and shut off the space below completely is the __________.

Correct Answer: Option B — blind ram

Emergency damage control procedures dictate that plugging below-waterline hull breaches focuses primarily on minimizing progressive flooding and reducing the volume of incoming water, as complete cessation of flow is frequently impractical during major casualties.