5. Consider the surface S = {[ije} : my+ya+azt = 111 $11912 3} 0'}. Which of the following planes is not tangent to S? (HINT: What is the equation of the plane tangent to S at the point (a, b, o} E S?) [2 marks] (A}1{la:+3y+z=44 {E} m+y+23=33 {C} 43:5y33=22 {D} 3m+3y+z=11 {E}121.'+y+112:=22