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.

Input: Consider Input: Problem: to deliver an order on time, a company has to make 25 parts a day. after making 25 parts per day for 3 days, the company started to produce 5 more parts per day, and by the last day of work 100 more parts than planned were produced. find how many parts the company made and how many days this took.
Options: a. 600, b. 500, c. 575, d. 655, e. 675

Output: e

Input: Consider Input: Problem: the total age of a and b is 12 year more than the total age of b and c. c is how many years younger than a ?
Options: a. 12, b. 24, c. data inadequate, d. none of these, e. 34

Output: a

Input: Consider Input: Problem: a, b, k start from the same place and travel in the same direction at speeds of 30 km / hr, 40 km / hr, 60 km / hr respectively. b starts seven hours after a. if b and k overtake a at the same instant, how many hours after a did k start ?
Options: a. 3, b. 4.5, c. 4, d. d. 5.5, e. e. 14
Output: e