Answer:
b. Principal: the amount of money you initially invested
Explanation:
We know that,
Simple interest on an amount is calculated by the formula,
![I=P.r.t](https://img.qammunity.org/2020/formulas/mathematics/high-school/rua7ca24plfefcco42ix34xlexm4r3s74l.png)
Where, P is the principal amount that is invested initially,
r is the rate of interest per period,
t is the number of periods.
Hence, P in the given formula must stand for principal amount.
⇒ Option b would be correct.