Katy loves Time Value of Money $($TVM$)$ problems, and understands the concept being crucial in personal finance, especially as it has helped her in important investment decision$-$making. Her best friend, Kassie is not so clear on the concept and has asked Katy which permits faster growth in a future value?

I. Longer investment period.

II$.$ More frequent compounding.

III. Simple rather than compound interest.

IV$.$ A higher present value.

V$.$ End of the period rather than the beginning of period savings.