Which sentence from the passage uses a correct parallel structure? a) either way, he had to choose quickly, as the stand was rapidly approaching. b) coming down the sidewalk at a breakneck pace, jimmy knew he would have to make a decision soon. c) as the stand rapidly approached, he closed his eyes, made his choice, and was praying for a good result. d) he could hit the brakes on his scooter, try to skid to a stop, and avoid the little girl's lemonade stand he saw ahead.