You are given a mathematical question described with a circumscribed mathematical vocabulary. Questions in this task usually contain some variables (e.g. X, Y), equations (e.g. X+Y=3) and some relationships (X is greater than Y). Often you need to find the value of the variable using equations and 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. Give only one answer for each question.

Ex Input:
S = 1 + 2 + 3 + 4 + ... + 49 + 50 T = 51 + 52 + 53 + ... + 99 + 100 If the sum of the positive integers from 1 to 50 is \(S\), and the sum of the positive integers from 51 to 100 is \(T\), what is \(T\) in terms of \(S\)?
(A)\(2S\) (B)\(S + 50\) (C)\(S + 100\) (D)\(S + 2500\) (E)\(S + 10000\)

Ex Output:
D


Ex Input:
If the product of two positive integers is greater than 20, and the sum of the two integers is 10, which of the following cannot be one of the integers?
(A)3 (B)5 (C)6 (D)7 (E)8

Ex Output:
E


Ex Input:
If \(a = \frac { 4 } { 3 } \), then \(\frac { 4 } { a } - \frac { a } { a - 1 } \) =
(A)-3 (B)-1 (C)\(\frac { 3 } { 4 } \) (D)1 (E)3

Ex Output:

B