Answer: 
Step-by-step explanation:
We know that the exponential equation for growth is given by :-
, where A is the initial amount , r is the rate of growth ( in percent) and t is the number of time period.
Similarly,
If P is the principal amount or initial amount deposited or borrowed.
r is the interest rate over a given period ( in percent).
n is the number of times that the interest is compounded.
Then, the total accrued using compound interest will be :-

Hence, the correct expression for the total accrued using compound interest : 