Which conclusion about the plague is widely accepted by historians? O Fleas that had bitten infected rats passed the infection on to humans.
O Certain groups were responsible for spreading the disease to many people.
O Catholic priests had certain ways to prevent the spread of plague to people.
O The plague was caused by lower food production and the burning of villages.

A. Fleas that had bitten infected rats passed the infection on to humans

Explanation:

This was furthered because people believed cats were spreading and they killed the cats that had been keeping the rat population under control

one of the negative side effects were the economic losses the events of september 11th caused. many, many people lost their jobs as a result of a downturn in the economy after the terrorist attacks.

your answer is

to dominate europe

and i know for a fact it can't be the others