Passage Summary: A consumer advocate argues that instructions are only doing their job if they make putting a product together much easier than trying to wing it without help.

Reasoning: The advocate proposes a principle that product instructions should be written so that they make assembly significantly easier than it would be without them.

Analysis: To find a reason why this principle cannot always be followed, we need a situation where the 'easiness gap' cannot exist. If a product is so intuitively simple that a person can assemble it perfectly and instantly without any guidance, then no set of instructions—no matter how well-written—could make the process 'much easier.' Look for an answer choice that describes a product that is already at the ceiling of ease-of-use. It's hard to improve on perfection, after all.