During the 1820s and 1830s, many people settled in texas and california. the territories were part of mexico. some thought that the united states should annex those territories. the territories were soon independent of mexico. they became part of the united states. which of following supports this passage?

mexico and the united states claimed different national boundaries until the 1840s.
mexico did not have very tight control over its northern territories.
texas and california needed u. s. military aid to gain independence from mexico. texas and california were only sparsely populated before the 1820s.

post the grid otherwise i cant .

also it sounds like a math question not history.

since most of current immigration into the u.s., both legal and illegal, is coming from latin america. it would be very difficult to imagine or rationalize a country my fellow citizens are trying desperately to flee into, would pose a threat to my prosperity or freedom. since the u.s. has a long history of intervention, but no record of permanent occupation, i would not feel oppression is the main objective.  

the largest free trade nation, along with the largest gdp in the world wanting to expand it's economic policy on us, and including us, could only be positive. the u.s. government has no interest in, or way of simply forcing american culture on us. and has no track record of it. other nations that adopted american social culture, or "americanization" did so voluntarily, mainly through the choice of allowing american businesses and u.s. citizens to come into their nations, as free operatives.