an aperture and shutter combination of f-11 at 1/125th of a
second will products the same exposure, using the same film speed,
as which of the following?
A. f-8 at 1/60th of a second.
B. f-8 at 1/250th of a second.
C. f-16 at 1/30th of a second.
D. f-5.6 at 1/250th of a second.
Please show all work clearly with explanation.