Answer: D. Mexican Americans were subject to unfair and harsh treatment by other Americans.
Step-by-step explanation:
Mexican Americans have for a long time being subjected to ridicule and before the Chicano Movement this was even more glaring.
They were subjected to unfair and harsh treatment by other Americans especially in the South and Western regions of the country. The 1960s Chicano movement for social and ethnical equality was the result of the frustration and despair they felt and it achieved some success and went a long way in making life better for Mexican Americans.