What were the primary reasons for the Mexican-American War? both territories wanting cheap laborers from the other
acquisition of more land for the states
disagreement over what currency should be used
disagreement over the Mexican-Texan border

The answer is be D, disagreement over the Mexican-Texan border.

Explanation:

Mexicans had shot Americans on what they thought was Mexico's side of the border,  but the Americans thought the Mexicans had shot them on United States side of the border.

the correct answer is: (1) affected by gerrymandering; (2) not affected by gerrymandering.

gerrymandering is known as a practice that intends to establish a some kind of political advantage for a particular party or group. to do this district boundaries are manipulated. the new resulting district is named a gerrymandering.

in other words, what gerrymandering does is to draw the boundaries of electoral districts trying to benefit the party who is doing it. sometimes, the party controlling the legislature will redraw it so they can maximize the number of districts they are likely to control.