position or generalization?

What we see: a Reading Comprehension structure question. It does not ask what the paragraph says. It asks how the paragraph is built, so we need the job of each sentence.

Step 1. Label sentence 1.
What we see: "The promise of finding long-term technological solutions to the problem of world food shortages seems difficult to fulfill."
What it means: this is a broad claim about a whole group of solutions, not about any one of them. That is a generalization.
What we do and why: we label it "broad claim." The first sentence often sets up the job of the sentences after it.

Step 2. Label sentences 2 and 3.
What we see: sentence 2 says "many innovations," such as fish-protein concentrate and protein from algae, "have since fallen by the wayside." Sentence 3 says they were "economically unviable" and "culturally unacceptable."
What it means: sentence 2 gives real cases that failed, and sentence 3 explains why they failed. Both show that the promise was hard to fulfill.
What we do and why: we label them "evidence for the claim," since each one makes the first sentence more believable.

Step 3. Label sentence 4, the tricky one.
What we see: recent innovations "seem more promising, but it is too early to predict their ultimate fate."
What it means: this adds a note of hope, but it reports no success. "Too early to predict" leaves the claim standing, since the promise is still not fulfilled.
What we do and why: we do not let this one sentence change our reading of the paragraph. The paragraph's main work is still in sentences 1 to 3.

Step 4. Match the pattern to the choices.
What we see: our pattern is a broad claim, then support.
(A) needs a suggestion, but the paragraph proposes no action.
(B) needs an alternative proposal, and none is offered.
(D) needs one example first and a conclusion after it. The paragraph runs the other way, with the claim first, and it uses several examples.
(E) is covered below.
What it means: one choice names exactly a claim followed by support.
What we do and why: we pick that choice, since it describes all of the paragraph's main moves in the right order.

The trap: (E). "Qualifying" means limiting a position or making it weaker, and the last sentence does sound a little like that, so this is the close call. But the evidence in sentences 2 and 3 backs the claim and does not limit it. The last sentence only says we do not know yet. A description of the whole paragraph should fit its main evidence, not one closing note.

Faster way: read sentence 1, then the words "Many innovations... such as." A broad statement followed by "many... such as" is almost always a claim and its evidence.

Takeaway: on structure questions, label each sentence with its job before you read the choices. Check the order too: general then specific is a claim with evidence, and specific then general is an example with a conclusion.

Answer: C