If y = x^2 + d x + 9 does not cut the x-axis, then which of the following could be a possible value of d?
I. 0
II. -3
III. 9 Choose the correct choice from the following answers
A) III only  B) II only  C) I and II only  D) II and III only  E) I and III only
Here C is the answer as A and B statements will provide the discriminant to be negative thereby making the x axis cutting impossible.   Hence only 1 and 2   thus I and II only
<result>C</result>
If y = x^2 + d x + 9 does not cut the x-axis, then which of the following could be a possible value of d?
I. 0
II. -3
III. 9