Definition: 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.
Input: On her biology test, Cathy answered \(\frac { 5 } { 6 } \) of the questions correctly. 6 correctly. If Cathy answered 18 of the first 27 questions correctly, then the total number of questions on the test must be at 1east
(A)32 (B)36 (C)45 (D)48 (E)54

E