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.

Example Input: Nora has 10 fewer than twice the number of CDs that Deborah has. If n represents the number of Nora's CDs, and d represents the number of Deborah's CDs, which of the following is a correct equation relating n and d ?
(A)\(n = 2d - 10\) (B)\(n = 2(d - 10)\) (C)\(n = 10 - 2d\) (D)\(n = 2(10 - d)\) (E)\(n = 10 - (d +2)\)
Example Output: A

Example Input: There are \(n\) students in a chemistry class, and only \(s\) of them are seniors. If \(j\) juniors are added to the class, what percent of the students in the class will not be seniors?
(A)\(\frac { s } { n } \times 100\%\) (B)\(\frac { n - s } { n } \times 100\%\) (C)\(\frac { n } { n + s } \times 100\%\) (D)\(\frac { n - s } { n + j } \times 100\%\) (E)\(\frac { n - s + j } { n + j } \times 100\%\)
Example Output: E

Example Input: Peter's income is directly proportional to the amount of time he works. If he earns \$27.00 for every 90 minutes of work, how many hours must he work to earn \$162.00 ?
(A)6 (B)9 (C)16.2 (D)18 (E)27
Example Output:
B