In the late 1990s, it was announced that the expansion of the universe is accelerating. what does this imply from the perspective of the big bang?

A force exists that we knew nothing about that causes the acceleration.

Explanation:

In 1998, scientists observed from distances of supernovae in remote galaxies that the enlargement of the universe is accelerating. Besides, there is evidence that suggests that the universe is  flat and infinite, as well as accelerating in its expansion. In that respect, the force suspected to be responsible for this is called dark energy.

it should be c, women were allowed to vote in all states because federal law supersedes state law.

"states can make their own laws, as long as they don't contradict what the federal law states. the states do not have the authority to pass a law that negates a federal law." -google

probably 3 since archeologists and historians don’t understand there writing.