Answer:
A has a higher return, so the better deal from your point of view is a discount rate of 5%.
Step-by-step explanation:
Suppose you are supposed to borrow $100.
A. You will get 95 after a discount of 5%, and after 90 days, and pay the $100 back.
The effective return for me = 5/95 = 5.26%
B. Return = 5.04%
C. 90 day return = 5.11%/4 = 1.278%
Therefore, A has a higher return, so the better deal from your point of view is a discount rate of 5%.