Which is NOT a reason for the increasing age of South Carolinians?

Question

Which is NOT a reason for the increasing age of South Carolinians?

South Carolinians are living longer.
The birth rate has held steady or declined slightly.
South Carolinians are having children later in life.
A larger number of retired people have moved to South Carolina.

Answer 1

The birth rate has held steady or declined slightly.

Answer 2

Which is NOT a reason for the increasing age of South Carolinians?

The birth rate has held steady or declined slightly.

The reason that is NOT a reason for the increasing age of South Carolinians is "The birth rate has held steady or declined slightly."