The question asks, "Which one of the following examples best illustrates the type of disaster response recommended by the experts mentioned in the third paragraph?"
In looking at the recommendations noted in the third paragraph, we know that the experts are focusing on long-term solutions that provide a lasting benefit to the communities, as the first sentence of the third paragraph (lines 31 and 32) states, "To develop a more effective approach, experts recommend shifting the focus to the long term." We're also told that the experts desire a grassroots dialogue with the community to facilitate preparedness so that community members can take the lead and have a plan already in place before any natural disasters (lines 36 through 41).
In the answer choices, we want to look for a disaster response that contains these recommendations. The plan should have some sort of grassroots component where there is dialogue with community members as well as a long-term focus.
(B) says, "Following a plan developed several years ago by a relief agency in consultation with donors and community members, the relief agency provides temporary shelter immediately after a flood and later helps rebuild houses destroyed by the flood."
In (B), we have a plan developed several years ago by a relief agency in consultation with donors and community members, so there is a grassroots component here. Additionally, the fact that this plan includes help in rebuilding houses destroyed by the flood shows a focus on the community's long-term needs, so we have a long-term focus here as well. This matches up extremely well with the experts' recommendations of a long-term focus with grassroots involvement, so this is the correct answer choice.
Does this make sense? Let us know if you have any more questions!