Although Exposing Children to Hazardous Work and Long Work Hours

Although exposing children to hazardous work and long work hours is unquestionably deplorable, which of the following, if true, leads to a moral dilemma?

A) Use of adult workers instead leads to higher labor costs.
B) Children are not as efficient as adults in doing physically demanding work.
C) Many child laborers come from poverty-stricken families.
D) Banning child labor increases school attendance.
E) Working children learn independence.