The present value of an annuity due of t payments of $$1$ per period is the same as:

A$.$ the present value of an ordinary annuity of t payments.

B$.$ $$1$ plus the present value of an ordinary annuity of t $-1$ payments.

C$.(1+$ r$)$ times the present value of an ordinary annuity of t payments.

D$.($B$)$ and $($C$)$

E$.$ none of the above