The average diameter of one strand of adult human hair is 80.0 microns micron is a micrometer m) d..

The average diameter of one strand of adult human hair is 80.0 microns micron is a micrometer m) d to have much finer hair, with an average diameter of 50.0 microns.
(A What is the difference in area of of an adult strand vs. a baby strand in c .Select ALL that apply.
a.  5.03 x 105 cm
b.  3.06 x 10-5 cm2
c. 30.0 cm2
d. 0.00300 cm2