Detailed Instructions: 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.
Q: Problem: suresh started a business, investing rs. 18000. after 3 months and 4 months respectively, rohan and sudhir joined him with capitals of 12000 and 9000. at the end of the year the total profit was rs. 3982. what is the difference between rohan ' s and sudhir ' s share in the profit ?
Options: a. rs. 362, b. rs. 383, c. rs. 398, d. rs. 399, e. rs. 400
A:
a