Studies are done on normal volunteers for phase 1 clinical trials of a new drug. The volume of distribution and clearance has been measured. The researchers now are calculating the half-life of the drug.

Assuming that the volume of distribution is 60 L and the clearance is 3 L/hour, what is the approximate half-life of this drug?

A-1/2 an hour

B-6 hours

C-12 hours

D-14 hours

E-18 hours

**Answer**