Answer: Option B
Explanation:
The advantage that the first time parents have in their 20s is that they have a better emotional stability.
This is because their brain is mature enough to understanding the fact that they have become parents and now they need to take care of the baby.
They are physically and mentally stable at this age which helps them becoming better parents.
The teenage is not a good age to be parents as they are not mature enough mentally and physically at this age.