Christi gives multiple demonstrations for two different cooking techniques each day at a local grocery store. The amount she earns for her seafood demos is given by f (x) = 85x - 21 where x represents the number of days. The amount she earns for her cake decorating demos is given by g (x) = 120x - 35.

Which function best represents, h, the total amount Christi earns after x days?

A.

h (x) = 205x - 56

B.

h (x) = 35x - 14

C.

h (x) = (85x - 21) (120x - 35)

D.

h (x) = 205x + 14