Rewrite the equation \( y - 31x = 93 \) as a function of \( x \).

A. \( g(x) = 93x + 31 \)

B. \( g(x) = 31x + 93 \)

C. \( g(x) = 31x - 93 \)

D. \( g(x) = -31x + 93 \)