A $2\mathrm{.}0-N$ force acts horizontally on a $10-N$ block that is initially at rest on a horizontal surface. The coefficient of static friction between the block and the surface is $0\mathrm{.}50.$

$19.$ What is the magnitude of the frictional force that acts on the block?

A$)0$ N

B$)2$ N

C$)5$ N

D$)8$ N

E$)10$ N