D. George Wallace and Curtis Lemay
after poor agricultural practices and years of deeply plowing, but nothing growing, farmers have learned to take the weather, tools, and distribution into count. therefore bettering their crop production.
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.
