Many people in South America are subsistence farmers. Subsistence farming is... A
growing only enough crops for food to fed the family.

B
focusing on growing cash crops to sell to make money.

C
growing only one type of crop.

D
growing crops in higher elevations.

A: growing only enough crops for food to feed the family.

Explanation:    

Substance farming is farming just enough to sustain someone.

I hope this helped <3

what events in mexico's history might explain why the country continues to have difficulty improving social justice and economic opportunities for all people?