In the acronym apact, the first "a" stands for author. do you need to know the author's name?
a yes, because you cannot use them as a source if you don't know the author's name
b. yes, because you may want to contact the author
c no becaule all of the information will have your name on it
d no, not if the information is from a reputable university

The answer is A.

Explanation:

Because if you don't know about the author you will not know if you should trust the site.

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.