Answer:
The statements (c) and (d) are correct.
Explanation:
The general formula to compute the compound interest is:

Here,
P = principal amount
r = rate of interest
t = time
The function provided to determine the amount of money compounded in Will's savings account is:

On comparing the two equations it can be seen that:

So the interest rate is, 3%.
So, the number 1.03 implies that Will's savings account increases by 3% each year.
And the growth factor of Will's savings account is 1.03.
Thus, the statements (c) and (d) are correct.