Martin is offered an investment where for $$4,000$ today, he will receive $$4,240$ in one year. He decides to borrow $$4,000$ from the bank to make this investment. What is the maximum interest rate the bank needs to offer on the loan if Martin is at least to break even on this investment?

A$.4\%$

B$.6\%$

C$.7\%$

D$.5\%$