A $20\mathrm{.}0$ kg block on a horizontal surface is attached to a light spring $($spring constant$)K=8\mathrm{.}00{10}^3\frac{N}{m}.$ The block is pulled $10\mathrm{.}0$ cm to the right from its equillibrium position and released from rest. When the block has moved $2\mathrm{.}00$ cm toward its equilibrium position, its kinetic energy is $12\mathrm{.}5$ J $.$ How much work is done by the frictional force on the block as it moves.

a$)-2\mathrm{.}50$ J

b$)-14\mathrm{.}4$ J

c$)-1\mathrm{.}40$ J

d$)-1\mathrm{.}90$ J

e$)$ none of the above