Q10: thumbs up for a correct quick answer

er Q10. Find all critical numbers (if any) of the function h(a) = Only one of the following answers is correct. A. 1= -11 B. r= - C. r= - D. r= - E. r= -2 F. r= - 19109 G. r= - H. r=-1 I. x= -3 J. =0 K. h has no critical numbers