Steepness in quadratic functions refers to how wide or narrow the graph is.
Positive/negative doesn't affect steepness in this situation so A would be out because it is essentially the same as the problem.
You would have to use graph transformations. When a number is front of the whole equation like how 3 is in front of x^2, it stretches the graph VERTICALLY making the graph MORE STEEP.
So which graphs has the largest coefficient (disregarding the negative signs)
It says graphs (with an s) so it would be C and E.
hope this helps C: