Beginning in 1350, a major drop occurred in the English population. The primary cause for this drop was

1.a low birthrate.
2.a drought.
3.the Black Death.
4.the Hundred Years' War.

3. The Black Death.

The correct answer is 3. the Black Death.

The primary cause for the major drop in the English population beginning in 1350 was the Black Death. The Black Death, also known as the Bubonic Plague, was a devastating pandemic that swept through Europe during the 14th century. It is estimated that the Black Death wiped out around 30-60% of the European population at the time.