Answer: The right answer is “…like a house that a child might have constructed from cards” (D).
Explanation: "Ramshackle" is an adjective that can be used to describe something that is about to collapse, that lacks stability, or that has been built without much care. Options A and B do not refer to this feature of the house, but to its fading color and to the fact that it was still miraculously standing. Option C does say that the house had been built on a cramped and barren lot, but these descriptions do not imply that the house was about to fall down. Option D is, therefore, the right choice, since, in it, the dwelling is being compared to a house made out of cards by a child - which can collapse with just a breath.
