A vertical block$-$spring system on earth has a period of $6\mathrm{.}0$ s $.$ What is the period of this same system on the moon where the acceleration due to gravity is roughly $\frac{1}{6}$ that of earth?

A$)6\mathrm{.}0$ s

B$)36.s$

C$)15\mathrm{.}5$

D$)2\mathrm{.}4$ s

E$)1\mathrm{.}0$ s