An investment of $$11,550$ is deposited for $3$ years at $2\mathrm{.}2\%$ compounded monthly. At this point, the interest rate is changed to $1\mathrm{.}95\%$ compounded semiannually. The investment earns interest for $5$ more years.

Select one:

a$.5$ years

b$.16$ compounding periods

c$.10$ compounding periods

d$.8$ compounding periods