The center pole used to hold up a circus tent is supported by a guy wire 53 feet long. The guy wire is anchored to the ground 45 feet from the base of the pole. What is the height, h, of the center pole? Round your answer to the nearest foot if necessary.
A. h = 31 feet
B. h = 70 feet
C. h = 784 feet
D. h = 28 feet