Suppose the National Bank Has Total Cash Reserves of $2

Suppose the National Bank has total cash reserves of $2, 000 and has $5, 000 in total deposits.If its total excess reserves are $1, 250, then the reserve requirement is equal to:

A) 25 percent.
B) 15 percent.
C) 10 percent.
D) 5 percent.
E) 20 percent.