The stimulus doesn't allow us to conclude this. Grass clippings are one way to get micro-nutrients, but the stimulus doesn't say it's the ONLY way. Thus, when the ...
Yes the assumption unstated is that "as a family" is less pervasive. But ac-A comes in and contradicts this assumption and weakens (perhaps destroys) the argument. Good analysis :-)
@westcoastbestcoast said:
I thought that the sentence that contains the condition in which the company allows Ann to leave was a bi-conditional and therefore we could get the contrapositive of the bi-conditional by negating both terms. ...