翻译一句话,好的加分！

The phenomenon that factories employ child labor has died out in many coutries.

注：此处虽然汉语用“情况”一词，但是英文中表示情况的词（situation, condition,etc）没有合适的，最好就是翻译成“现象”

The appearence which factory employs child labors had died out in many countries.

Child labour employment had died out in many countries.

the employment of child labor in many countries has died out