Which is the best example of a secondary source document useful in the study of history?
a. a letter from a relative of a participant in a battle or campaign
b. a newspaper article written the day after an event occurred
c. an academic analysis of key battlefield strategies
d. an officer's listing of military personnel killed in battle

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