Answer:
An invasion, via blitzkrieg tactics.
Explanation:
The answer is letter D.
Explanation: Pericles was born in one of the noblest families of Athens, the Alcmeônidas. He had a strong character, was sober, incorruptible and reserved. Was elected a quarterback without interruption, from 443 BC to 429 BC. He had a great ancestry over the city of Athens.
His authority was great, and the period of his rule was known as the Pericles Era. The historian Thucydides states under Pericles' leadership Athens, though a democracy, was directed by the best citizen.
It increased because of the industrial era<span />
Machines made it easier to complete hard tasks(such as the cotton gin) and they also could get work done faster than humans, which lead to a much grander scale of production in goods. Hope this helps :D
I'm not so sure it might be 8 groups I think pretty sure it's 8