LaSee Corp. leased Optical equipment under a $6-$year lease with an option to renew for $4$ years at the end of $6$ years and an option to renew for an additional $2$ years at the end of $10$ years. The first $4-$year renewal option can be exercised for one$-$half the original and usual market rate, and the second $2-$year renewal optional can be exercised at the usual market rate for this type of assets. What is the length of the lease term that LaSee should assume in recording the transactions related to the lease?

Select one:

a$.6$ years

b$.4$ years

c$.12$ years

d$.10$ years