can you show me the calculator trick ?

Q. Stellar Corp. recently issued $100 par value deferred coupon bonds, which will make no coupon payments in the next four years. Regular annual coupon payments at a rate of 8% will then be made until the bonds mature at the end of 10 years. If the bonds are currently priced at $87.00, their yield to maturity is closest to: A. 6.0%. B. 8.0% C. 10.1%