Child labor is most prominent in what area of the world? a. central america b. southeast asia c. southern europe d. north america

I agree with the person above - in B. Southeast Asia, child labor is the most prominent.
In countries such as Vietnam, Laos, Cambodia, Thailand, Myanmar, etc., child labor is almost a 'normal' thing - often, children are abused and made to work long hours in 'sweatshops' only to create something which will be sold at a low price, whereas they will be paid next to nothing.