Which shows the equation below written in the form ax2 + bx + c = 0?
x² + 6x+8=3
O A. x2 + 6x + 5 = 0
O B. x2 + 6x + 11 = 0
O C. x2 + 6x + 8 = 0
O D. x2 + 6x + 3 = 0