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:
If the fraction \(\frac{1}{21}\) equals the repeating decimal 0.0476190476190..., what is the 51st digit after the decimal point of the repeating decimal?
(A)0 (B)1 (C)4 (D)6 (E)7

Ex Output:
E


Ex Input:
If \(x = 1\) and \(y = -1\), then \(x^2 + 2xy + y^2 =\)
(A)\(-1\) (B)0 (C)1 (D)2 (E)4

Ex Output:
B


Ex Input:
If the variables \(a\), \(b\), \(c\), \(d\), and \(e\) have distinct values and are listed in order from least to greatest, which of the following could be true? I. \(b\) is arithmetic mean II. \(e\) is one of the modes III. \(d\) is the median
(A)I only (B)II only (C)I and II (D)I and III (E)I, II, and III

Ex Output:

A