What was a reason that the Industrial Revolution lead to an increase in child labor?

Question 1 options:

Women were outlawed from working outside the house, so the children had to earn in their place.


The baby boom of the early 19th century resulted in too many children with not enough to keep them busy.


Machines were used in factories that made tasks simple enough that "even a kid can do it".


Most of the men were away fighting in wars.