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: a question paper has 2 parts, a & b, each containing 8 questions. if a student has to choose 8 from part a & 4 from part b, in how many ways can he choose the questions ?
Options: a. 110, b. 70, c. 120, d. 130, e. 140
A:
b