Which sentence contains an error in word usage? A) Emily won't drink coffee unless it has almost half a cup of sugar poured into it. B) We poured over all the ancient books found in the dusty, abandoned library closet. C) The rain came pouring down putting a very quick end to our hike to see the waterfall. Eliminate D) Evan's eyes were red this morning because he had pored over his books all night studying for his test.