You will be given a definition of a task first, then some input of the task.
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: a starts business with rs. 3500 and after 8 months, b joins with a as his partner. after a year, the profit is divided in the ratio 2: 3. what is b a ™️ s contribution in the capital ?
Options: a. 24887, b. 20778, c. 23788, d. 15750, e. 2811
Output:
d