$12.$ You are considering two investments: A & B$.$ Both investments provide a cash flow of $$100$

per year for n years. However, investment A receives the cash flow at the beginning of each

year, while investment B receives the cash at the end of each year. If the present value of

cash flows from investment A is P$,$ and the discount rate is r$,$ what is the present value of the

cash flows from investment B$?$

A$)$ P$/(1+$r$)$

B$)$ P$(1+$r$)$

C$)$ P$/(1+$r$)$n

D$)$ P$(1+$r$)$n

E$)$ None of the above