Sadik Inc.'s bonds currently sell for $1,333 and have a par value of $1,000. They pay a $135 annual coupon and have a 15-year maturity, but they can be called in 5 years at $1,050. What is their yield to call (YTC)?

Group of answer choices

6.12%

6.72%

6.39%

6.48%

7.04%