Answer :
A) The detail in Passage 1 that introduces information irrelevant to Reagan's argument is "we're going to make further reductions in spending."
Reagan's argument in Passage 1 focuses on addressing unemployment and the recession through tax cuts and maintaining government policies. The statement about "further reductions in spending" introduces a different aspect not directly related to his argument, as it pertains to fiscal policy rather than the specific economic recovery plan he is advocating for. This detail is tangential to Reagan's main point and does not contribute directly to his argument about addressing the recession. Therefore, it can be considered irrelevant in the context of his argument.