TASK DEFINITION: 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.
PROBLEM: Problem: what is the least number of squares tiles required to pave the floor of a room 15.17 m long and 9.02 m broad ?
Options: ['a. 814', 'b. 266', 'c. 287', 'd. 999', 'e. 661']

SOLUTION: a

PROBLEM: Problem: the area of a square field is 625 km 2. how long will it take for a horse to run around at the speed of 25 km / h ?
Options: a. 12 h, b. 10 h, c. 8 h, d. 4 h, e. none of these

SOLUTION: d

PROBLEM: Problem: how many 2 - inch by 3 - inch rectangular tiles are required to tile this shaded region ?
Options: ['a. less than 10', 'b. 10 100', 'c. 101 1,000', 'd. 1,001 1,500', 'e. 1,500 +']

SOLUTION:
e