What is the difference between a Kit end a Bundle?

What is the difference between a Kit end a Bundle?
A . The pricing of a Bundle is determined by the price list item associated with the Bundle.
B. A Bundle is constructed by the customer.
C. The pricing of a Bundle is determined by the products contained in the Bundle, but a Kit price is determined by the price list item associated with the Kit.
D. A Bundle is a tightly related set of products.

Answer: A