The Formula That Links Checkable Deposits to the Money Supply $M=\frac{1+c}{D}$

The formula that links checkable deposits to the money supply is

A) $M=\frac{1+c}{D}$ .
B) $M=\frac{1}{1+c} \times \mathrm{D}$ .
C) $\mathrm{D}=\frac{1}{1+\mathrm{c}} \times \mathrm{M}$ .
D) $\mathrm{D}=(1+\mathrm{c}) \times \mathrm{M}$ .