In the Model of the Money Supply Process for M2,the $\mathrm{D}=\frac{1}{1+\mathrm{c}+\mathrm{t}+\mathrm{mm}} \times \mathrm{M} 2$

In the model of the money supply process for M2,the relationship between checkable deposits and the M2 money supply is represented by

A) $\mathrm{D}=\frac{1}{1+\mathrm{c}+\mathrm{t}+\mathrm{mm}} \times \mathrm{M} 2$ .

B) $\mathrm{D}=(1+\mathrm{c}+\mathrm{t}+\mathrm{mm}) \times \mathrm{M} 2$ .

C) $\mathrm{M} 2=\frac{1}{\mathrm{rr}+\mathrm{c}+\mathrm{t}+\mathrm{mm}} \times \mathrm{D}$ .

D) $\mathrm{M} 2=\frac{\mathrm{rr}+\mathrm{c}+\mathrm{t}+\mathrm{mm}}{\mathrm{D}}$ .