Using full stop increments, what are 3 sets of equivalent exposures for f/32 - 1/500?
a) f/22 - 1/250, f/16 - 1/125, f/11 - 1/60
b) f/5.6 - 1/60, f/8 - 1/125, f/11 - 1/250
c) f/2.8 - 1/500, f/4 - 1/250, f/5.6 - 1/125
d) f/11 - 1/60, f/16 - 1/125, f/22 - 1/250
