Pseudoephedrine is sold with restrictions in many countries because:

Correct option is B

Ans. (b) Sol. Pseudoephedrine can be chemically processed to make methamphetamine, hence it's regulated despite being an effective decongestant.
Additional Information: OTC Decongestants:
· Pseudoephedrine – Potent, but regulated
· Phenylephrine – Safer alternative but less effective