18. Which function is the result of translating y = x^2 downward by 3 units and to the left by 4 units?
A) y = (x – 3)^2 + 4
B) y = (x + 3)^2 – 4
C) y = (x + 4)^2 – 3
D) y = (x – 4)^2 + 3