Answer: The union movement in the US has gone through cycles of weak influence/strong support as the overall economic climate of the country has changed. ... Starting with Cold War fears of communist infiltration of unions, the economy began to distance itself and sidestep the obstacle of unions whenever
Explanation:have a good day.
Answer:
Correct answer is A. Determine the resource's original medium of production.
Explanation:
A is correct answer because it is important to know how reliable the source - is it forged or not, and its validity - to see if the information contained there are true.
B is wrong because it is not important who the author is, but is he reliable enough.
C is wrong because it doesn't matter how many time the resource has been published, if it is not reliable.
D is not important, because idea itself is not telling us enough about its importance and validity.