Break down presupposition and explicitly based please .:)

Hi @TaylorW, thanks for your post. The word "presupposition" is a synonym for "assumption" — an unstated premise. "Explicitly based" means clearly expressed (and not implied). The question stem asks you to articulate the role played by the proposal about how the government's budget should be redirected. In the stimulus, this proposal is that "more of the government's budget should be redirected to preventing spills." This claim is not an assumption — it is stated, not unstated. Thus, (D) can be eliminated on account of the word "presupposition." Hope this helps! Please let us know if you have any additional questions.