Given the functions f(x) = x + 2 and g(x) = x ? 12x + 1 what is the range of (g + f)(x) ?a)

Given the functions f(x) = x² + 2 and g(x) = x² ? 12x + 1 what is the range of (g + f)(x) ?a) R = {y \ y ? R}b) R = {y \ y ? 12, y ? R}c) R = {y \ y ? 15, y ? R}d) R = {y \ y ? -15, y ? R}