15-Some bonds currently sell for $1.150, They have 8% coupon rale with semi-annual coupon payments. and have 15-year maturity, with $1,000 par value, but they can be called in 6 years at $1, 100. Assume that no costs other than the call premium would be incurred to call and refund the bonds. What is the YTC? a) 6, 350% b) 7, 235% c) 8, 119% d) 5, 978% c) 11, 247%