On May 11, 1846, President James Polk updated Congress on recent events concerning Texas. The emissary he sent to Mexico with an offer of cash in exchange for disputed lands was rudely rebuffed. Then, Mexicans opened fire on Americans at the Rio Grande River, killing 16. "War exists," Polk declared.
Answer:
the 19th-century doctrine or belief that the expansion of the US throughout the American continents was both justified and inevitable.
Explanation:
Endogamy is the practice of marriage within a certain group. Therefore. A is out. Polydomous has something to do with species of animals inhabiting several nests. B is out. Polygamy is having more than one partner at a time, without anyone's consent. Therefore, C is out. Exogamous has to do with marriage only permitted outside of the group, not in the group. D works, but let's check E. Monogamous has to do with marriage to only one person at a time, which is not the best answer for this question. So the answers is D: exogamous.
