How was Philip II able to conquer the Greek city-states? Check all that apply.
He defeated some city-states in battle.
He formed a strong army of foot soldiers.
He bribed the leaders of some city-states.
He joined forces with the Persians.
He promised to rebuild weakened city-states.

Correct answer is

He defeated some city-states in battle.

He formed a strong army of foot soldiers.

He bribed the leaders of some city-states.

Explanation:

First option is correct as he defeated them in many battles, the most famous one being at Chaeronea.

His famous phalanx was built on the basis of Greek army, but was even more developed.

Bribing his leaders was one of the most common ways. Many, including Demosthenes were mentioning this in their speeches against Philip.

He was an enemy, not an ally with Persia.

He didn't wanted to rebuilt city-states, he wanted to create common empire.

originally he was supposed to be dead but they wanted to continue the series so they brought him back to life.