Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.

Example Input: Problem: the length of a rectangular floor is more than its breadth by 100 %. if rs. 600 is required to paint the floor at the rate of rs. 3 per sq m, then what would be the length of the floor ?
Options: a. 15.0 m., b. 14.4 m., c. 12.0 m., d. 16.2 m., e. 16.5 m.
Example Output: b

Example Input: Problem: find the curved surface area, if the radius of a cone is 35 m and slant height is 30 m ?
Options: a. 1100, b. 2200, c. 3300, d. 4400, e. 5500
Example Output: c

Example Input: Problem: in a company of 10 employees, 5 employees earn $ 30,000, 3 employees earn $ 40,000, and the 2 highest - paid employees earn the same amount. if the average annual salary for the 10 employees is $ 65,000, what is the annual salary for each of the highest - paid employees ?
Options: a. $ 190,000, b. $ 170,000, c. $ 150,000, d. $ 130,000, e. $ 110,000
Example Output:
a