saby1410
Note what the passage is all about. I have removed a lot of extra info:
Antonia Castañeda has... examined 19th century literary portrayals of Mexican women... Male novelists of the period ... define women solely in their domestic roles of wife and mother. During the same period that saw
non-Hispanic women being economically displaced by industrialization,
Hispanic law in territorial California protected the economic position of "Californianas" (the Mexican women of the territory) by ensuring them property rights and inheritance rights equal to those of males.
Novels' favour these Californiana women which is noteworthy, since Mexican-American historians have concluded that unflattering literary depictions of Mexicans were vital in ... The importance of economic alliances forged through marriages with Californianas explains this apparent contradiction. Because of their real-life economic significance, the Californianas were portrayed more favourably than were others of the same nationality.
First para explains how in 19th century a Hispanic law protected economic position of Hispanic women in California (called "Californianas") while non-Hispanic women lost economic privileges. Second paragraph tells us that this is why novels favour these "Californianas" though they usually did not favour other Mexicans. Important economic alliances were forged by marriage to these "Californianas"
A. trace historical influences on the depiction of Mexican Americans in the nineteenth century
No. The passage does not deal with how all Mexican Americans were depicted and neither does it trace multiple influences. It only explains why "Californianas" were treated favourably in novels while others were not. The passage deals with "Californianas" only.
C. describe the historical origins of a literary stereotype
Correct. It describes why novels favour "Californianas" - a literary stereotype
This is much more precise.
Answer (C)