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 metallic sphere of radius 24 cm is melted and drawn into a wire, whose radius of cross section is 16 cm. what is the length of the wire ?
Options: a. 26 cm, b. 45 cm, c. 58 cm, d. 63 cm, e. 72 cm
A:
e