The Steep Increase of Female-Headed Chicano Households in the Latter

The steep increase of female-headed Chicano households in the latter half of the 19th century was largely a consequence of the treaty of Guadalupe Hidalgo because ______.

A) Mexican families were displaced from their lands when the Southwest was incorporated into the United States and men went to work in mines or railroads, which resulted in temporary abandonment and, often, death
B) Mexican families had traditionally kept strict gender roles until Northern Mexico was incorporated into the United States, when gender roles became more fluid
C) women and children were often prohibited from joining their husbands in railroad and mining camps
D) the treaty required that women and children also joined the industrial and agricultural labor force