Jennifer receives $100 and puts it into her savings account. she adds $0.25 to the account each day for a number of days, d, after that. she writes the expression 100 + 0.25(d – 1) to find the total amount of money in her savings account after d days. which statement about her expression is true?

a: it is the sum of the initial amount and the additional amount after d days.

b: it is the product of the initial amount and the additional amount after d days.

c: it is the sum of the initial amount and the number of days, d.

d: it is the difference between the initial amount and the additional amount after d days.