You are given a geometric mathematical question. Questions in this task often involve shapes and Geometric Relationships. 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.

Ex Input:
The measures of the three angles of a triangle are in the ratio of 5:5:10, and the length of the longest side is 10. From this information, which of the following can be determined? I. The area of the triangle II. The perimeter of the triangle III. The length of each of the three altitudes
(A)I only (B)II only (C)III only (D)I and II only (E)I, II, and III

Ex Output:
E


Ex Input:
Points E and F lie in the xy-coordinate plane at (0,10) and (6,0), respectively. Which of the following is the midpoint of \(\overline { EF } \) ?
(A)(5,3) (B)(3,5) (C)(3,10) (D)(10,3) (E)(6,10)

Ex Output:
B


Ex Input:
In a coordinate plane, if points C\((2, 5)\), D\((-1, 2)\), and E\((x, y)\) lie on line l, which of the following could be the coordinates of point E?
(A)\((0, 1)\) (B)\((1, 1)\) (C)\((0, 2)\) (D)\((1, 3)\) (E)\((1, 4)\)

Ex Output:

E