What was the main cause of the peloponnesian war?

a.
the spartans resented athens' dominance over other city-states.

b.
the peloponnesian people turned out to be even fiercer warriors than the spartans, so they attacked.

c.
sparta began building a navy and the athenians responded.

d.
the other city-states decided to band together to defeat sparta and athens.

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How does the supremacy clause of the u. s. constitution affect the states? o a. it requires each state to establish a supreme court. b. it declares that the federal government can take away state powers if necessary. o c. it allows state governments to overthrow the federal government if necessary. o d. it ensures that the u. s. constitution overrules each state constitution