Your Sister Paid $10,000 (CF at T = 0) for an Investment

Your sister paid $10,000 (CF at t = 0) for an investment that promises to pay $750 at the end of each of the next 5 years, then an additional lump sum payment of $10,000 at the end of the 5th year.What is the expected rate of return on this investment?

A) 6.77%
B) 7.13%
C) 7.50%
D) 7.88%
E) 8.27%