Flatlands Corp. and Highlands Inc. issued the bonds below:

Flatlands Bond Highlands Bond

Bond rating AA BBB

Callable Yes No

Convertible Yes No

Coupon rate 4% 5%

Time to maturity 10 years 15 years

YTM 5.8% 7.1%

Which factors could explain the higher yield to maturity on the Highlands bond?

Check all that apply:

Coupon rate

Time to maturity

Convertibility

Callability

Bond rating