There is a sentence that is missing in the paragraph below. Look at the paragraph and decide where
(option 1, 2, 3, or 4) the following sentence would best fit.
Sentence: The brain isn’t organized the way you might set up your home office or bathroom medicine
cabinet.
Paragraph: ___(1)___. You can’t just put things anywhere you want to. The evolved architecture of the brain
is haphazard and disjointed, and incorporates multiple systems, each of which has a mind of its own.
___(2)___. Evolution doesn’t design things and it doesn’t build systems—it settles on systems that,
historically, conveyed a survival benefit. There is no overarching, grand planner engineering the systems so
that they work harmoniously together. ___(3)___. The brain is more like a big, old house with piecemeal
renovations done on every floor, and less like new construction. ___(4)___.