An insert plate containing an opening with a reinforcing plate is to be installed in a tank. The reinforcing plate diameter is thirty-two inches. What is the minimum diameter of the insert plate?

The insert plate must be 32 inches in diameter

The insert plate must be 44 inches in diameter

The insert plate must be 32 inches in diameter plus the diameter of the opening

The insert plate must be 32 inches in diameter plus twice the diameter of the opening