Which option accurately explains chinese influence on modern warfare? a)the chinese developed guns and gunpowder, which were later adopted by western civilizations and used in subsequent wars around the world. b)the chinese developed the catapult, which was later adopted by the romans to conquer territories in the near east. c)the chinese appointed military leaders based on ability and competence versus blood line, which was later adopted by the japanese empire.

a) The Chinese developed guns and gunpowder, which were later adopted by Western civilizations and used in subsequent wars around the world.  

Explanation:

Black powder by one way or another remained an imposing business model of the Chinese until the thirteenth century, when the science was passed along the old silk exchange course to Europe and the Islamic world, where it turned into an integral factor in many Middle Age engagements.  

By 1350, simple explosive guns were typical in the English and French militaries, which utilized the innovation against one another during the Hundred Years' War. The Ottoman Turks additionally utilized explosive guns with forsake during their fruitful attack of Constantinople in 1453. The incredible new weapon basically rendered the conventional walled fortress of Europe, invulnerable for a considerable length of time, feeble and helpless.

b) a state law could be declared illegal if it contradicted the constitution.

explanation:

the conflict of this case originated when james w. mcculloch, a cashier of the baltimore branch of the second bank of the united states that the congress had chartered in 1816, refused to pay a tax imposed by the maryland state.

in the case, the state of maryland appealed that the establishment of a second bank was unconstitutional since the constitution didn't say anything about granting that power to congress. however, the case determined that even if such right wasn't specifically stated in the constitution, it was part of the "implied powers" of the government enunciated in article i, section 8.

the case also eliminated maryland's legislation to impose taxes to a national bank, asserting that even though the states retained the power of taxation, the constitution's laws are supreme and can not be controlled by the states, therefore, if a state law contradicts the constitution, it should be declared illegal.

explanation:

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.