Which of these populations appear to be at hardy Weinberg equilibrium?

Which of these populations appear to be at hardy Weinberg equilibrium? Explain each please

A. AA=0.01, Aa =0.18, aa=0.81

B. AA=0.25, Aa=0.50 aa=0.25

C. AA=0.36 Aa=0.60 aa=0.04

D. AA=0.09 Aa=0.42 aa=0.49

E. AA=0.64 Aa=0.20 aa=0.16