The development of most new drugs from discovery to marketing approval usually takes:

A. 1-3 years

B. Less than 5 months

C. 9 years or more

D. 5 years

Answer:

C. 9 years or more

Explanation:

The process of developing a new drug involves several stages, including discovery, preclinical testing, clinical trials, and regulatory review. This entire process typically takes 9 years or more due to the complexity and rigorous testing required to ensure the drug is safe and effective.

The stages include: