Answer:
The correct answer is: whenever the brain is developing, the organism is most vulnerable to the disruptive effects of alcohol.
Explanation:
Both teenagers and fetuses are still developing their brains. It is not complete like an adult's. In that sense, the depressive effects of alcohol on the central nervous system are enhanced in fetuses, children and teenagers, possibly leading to an interruption of development, causing cognitive impairment, memory loss, etc. The brain will only be completely formed in a person's early twenties.
