A sofa and chair have a total price of $ 600 not including tax. The tax rate is 6.25 %. Find the tax on the sofa if the price of the chair is $200.

(a)$ 625 (b)$ 637.50 (c)$ 25 (d)$ 612.50 (e)$ 47.50

Im thinking its either B, or D but I am not quiet sure.