What is the volume of the item described? A capsule consisting of a cylinder of radius 3 mm and height 6 mm with a hemisphere on each end of radius 3 mm. Select the exact answer in terms of ​ π ​ and the approximate answer rounded to the nearest whole number.
a.81 π mm³
b.283 mm³
c.254 mm³
d.170 mm³ ​
e.54 π mm³