19. PLEASE HELP ME
Order the group of quadratic functions from widest to narrowest graph.
y=, y=, y=

A. y= -7x2, y= -1/3x2, y= -1/5x2

B. y= -1/5x2, y= -7x2, y= -1/3x2

C. y= -1/3x2, y= -1/5x2, y= -7x2

D. y= -1/5x2, y= -1/3x2, y= -7x2