What is the equation for the firm's total variable cost?

Select one:

a$.2,000-10Q+0\mathrm{.}25Q^2$

b$.2,000Q-10Q^2+0\mathrm{.}25Q^3$

c$.5,000+2,000Q-10Q^2+0\mathrm{.}25Q^3$

d$.$ The total variable cost equation cannot be determined from the total cost equation.