You are given a mathematical question described with an open-ended vocabulary. Questions in this task involve real-world situations, describing a mathematical problem. You are also given 4 or 5 answer options (associated with "A", "B", "C", "D", "E"). Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D', 'E'. LaTeX mathematical format (the standard way to express mathematical expressions in the typesetting software known as LaTeX) is used to express equations. Each question is solvable with high school math knowledge. Give only one answer for each question.

Ex Input:
An arrow is shot upward on the moon with an initial velocity of 60 meters per second and returns to the surface after 60 seconds. If the height is given by the formula \(h = t(60 - t)\), what is the maximum height that the arrow reaches?
(A)300 meters (B)600 meters (C)900 meters (D)1200 meters (E)1500 meters

Ex Output:
C


Ex Input:
If Maurice has $80, and he spends $32.45 on clothes and gives $27.55 to his sister, what fraction of the original $80 does Maurice have left?
(A)\(\frac{1}{5}\) (B)\(\frac{1}{4}\) (C)\(\frac{3}{10}\) (D)\(\frac{1}{2}\) (E)\(\frac{3}{5}\)

Ex Output:
B


Ex Input:
After 6 new cars entered the parking lot and 2 cars left the parking lot, there were 2 times as many cars as before. How many cars were parked in the parking lot before the changes?
(A)2 (B)4 (C)6 (D)8 (E)10

Ex Output:

B