Prescription drugs a. are always okay to take when driving as long as they are prescribed by a doctor. b. may never be taken when driving. c. may be illegal to take when driving.

The answer is it may never be taken when driving. 

I don't believe prescription drugs should be taken while driving, and it's likely this would be illegal, considering how easily the driver could choke on the pill if they went over a bump, for example. It can be a safety hazard.
Therefore I think the answer is C. This could be illegal.
I hope this helps!

Icant give you a pair or how to complete the table if i do not know what the table looks like.

Answer evaporation and condensation;