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In advanced text production, the use of cleft sentences...
In advanced text production, the use of cleft sentences (it-clefts and wh-clefts) allows the writer to manipulate information structure for emphasis. Considering the morphosyntactic properties of it-clefts, select the alternative that correctly analyzes the focus in the sentence "It was the strong wind that caused the power outage".
A
The use of the dummy subject "It" indicates that the sentence is impersonal and lacks a specific agent, shifting the focus entirely to the result "power outage".
B
The cleft structure places the noun phrase "the strong wind" in the focus position, explicitly contrasting it with other possible causes (contrastive focus) while presupposing that something caused the outage.
C
The structure emphasizes the verb "caused" by fronting the agent, making the sentence equivalent to a passive voice construction where the agent is unknown.
D
The sentence is grammatically incorrect because it-clefts cannot be used with inanimate subjects like "wind"; a wh-cleft would be the only appropriate choice here.