Final answer:
The area of rectangle B is equal to the area of rectangle A, as rotation does not change the area of a geometric shape. The correct option is B.
Step-by-step explanation:
The question asks about the area of rectangle B after rectangle A is rotated 90° clockwise about a point P. In geometry, when a rectangle is rotated around a point, the area of the rectangle remains unchanged regardless of the rotation.
Therefore, the area of rectangle B will be the same as the area of rectangle A. Since no specific dimensions are provided for rectangle A, we cannot provide a numerical answer; we can only state that the area of rectangle B is equal to the area of rectangle A. The correct option is B.