For a right-of-use asset under a lease that qualifies as a finance lease because the lease contains a purchase option and the option is reasonably certain to be exercised, the amortization period used by the lessee must be:

A) The same period that was used by the lessor.

B) The economic life of the asset at the time the lease agreement took effect.

C) The term of the lease.

D) The term of the lease or the economic life of the asset, whichever is shorter.