Final answer:
The area of the rectangle is 3276. The correct option is (C) 3326.
Step-by-step explanation:
The area of a rectangle is found by multiplying its length by its width. In this case, the length of the rectangle is 78 and the width is 42. So, the area of the rectangle is 78 * 42 = 3276.
Therefore, the correct option is (C) 3326, since it is the closest value to the calculated area of the rectangle.