Interest Rate Swaps: I.benefit Either the Buyer or the Seller,but Not Both

Multiple Choice

Interest rate swaps:
I.benefit either the buyer or the seller,but not both.
II.are often used in conjunction with a currency swap.
III.are commonly used in business.
IV.can be used to change the index which determines the variable rate on a firm's debt.

A) I and III only
B) II and IV only
C) II, III, and IV only
D) I, III, and IV only
E) I, II, III, and IV