The federal government has the power to a. conduct foreign policy b. regulate business within a state c. issue state licenses d. establish local governments

there are two main types of historical sources: primary sources and secondary sources. a primary source is something that originates from the past. it can be a chronicle, a piece of pottery, or even a piece of glacial ice that gives us climate data about the levels of atmospheric carbon one thousand years ago.

a is correct

hope this let me know if it is right