The answer is letter A. There had been an issue during the
1787 when the issue of representation in the US Legislation had caused
problems. Larger states claimed that they should have a larger representation
the smaller states appealed that the representation should be equal amongst the
states in the US
The Maya were native people of Mexico and Central America, while Aztec covered most of northern Mesoamerica.
Black holes themselves can not be seen, nor do they leave trails (since emptiness does not have to be caused by a black hole), but there is evidence for black holes: scientists can see the effects of their gravity on nearby stars. The answer is B.
C) Texas sought to gain independence from Mexico, due to Mexico's government changing from a democracy to a dictatorship.
Texas saw the laws in Mexico as arbitrary and tyrannic in many ways. It reminded them of how British used to treat the colonies, maybe worse. They did not want to follow the rules of Mexico.