Which of the following factors contributed most to the expansion of both the persian and greek empires?

a. military conquest
b. religious tolerance
c. independent city-states
d. industrial productivity

the influence of charles louis de secondant , baton montesquieu.

it foreshadows the theme of the paragraph and hints the topic that will be discussed in the paragraph!

b or c im pretty sure

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.