[T]here are more children born in Roman Catholick countries about nine months after Lent, the markets will be
more glutted than usual, because the number of Popish
infants, is at least three to one in this kingdom, and
therefore it will have one other collateral advantage, by
lessening the number of Papists among us.
To what real-world problem from Swift's time is the narrator referring?
A. Disagreement over religious holidays and celebrations in Ireland
and England
B. Fathers abandoning families
C. Religious clashes between the Protestants and Catholics
D. Overpopulation in the urban parts of Ireland