Welcome to the world of misplaced modifiers .
What is the statement trying to tell us in the first place. It is saying that once upon a time celling fans were important and now they are regaining interest so (from 1990..till when they were important ) is a non essential modifier in this case.
so how do we present the statement to please GMAT folks. Place the non essential modifier between the main subject matter of the statement.
B does this perfectly hence choosing it gets you closer to 750
...
What is the statement trying to tell us in the first place. It is saying that once upon a time celling fans were important and now they are regaining interest so (from 1990..till when they were important ) is a non essential modifier in this case.
so how do we present the statement to please GMAT folks. Place the non essential modifier between the main subject matter of the statement.
B does this perfectly hence choosing it gets you closer to 750
...
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