Answer:
monarchy
A monarchy has a king, queen, emperor or empress. The ruling position can be passed on to the ruler's heirs. In some traditional monarchies, the monarch has absolute power. But a constitutional monarchy, like the UK, also has a democratic government that limits the monarch's control
The Mexican American war was basically when The U.S. Invaded mexico during the period April 25, 1846 – February 2, 1848:
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The dispute grew up from the United States’ annexation of </span>Texas<span> in 1845 and from a dispute over whether Texas ended at the Nueces River (Mexican claim) or the </span><span>Rio Grande</span>
One by one, the Classic cities in the southern lowlands were abandoned, and by A.D. 900, Maya civilization in that region had collapsed. The reason for this mysterious decline is unknown, though scholars have developed several competing theories. which is Maya had exhausted the environment around them to the point that it could no longer sustain a very large population. <span>Other Maya scholars argue that constant warfare among competing city-states led the complicated military, family (by marriage) and trade alliances between them to break down, along with the traditional system of dynastic power. As the stature of the holy lords diminished, their complex traditions of rituals and ceremonies dissolved into chaos. Finally, some catastrophic environmental change–like an extremely long, intense period of drought–may have wiped out the Classic Maya civilization. Drought would have hit cities like Tikal–where rainwater was necessary for drinking as well as for crop irrigation–especially hard</span>
The stamp act made taxes on everyday necessities like food and drinks, and such.
The primary objective of the treaty is C, to limit the number of warships.
The purpose of the three neutrality acts was B, to keep the US out of another world war.