Question ID:PT52 S2 Q6 Passage:Workers at a water treatment plant open eight valves‚ G, H, I, K, L, N, O, and P‚ to flush out a system of pipes that needs emergency repairs. To maximize safety and efficiency, each valve is opened exactly once, and no two valves are opened at the same time. The valves are opened in accordance with the following conditions:Both K and P are opened before H.O is opened before L but after H.L is opened after G.N is opened before H.I is opened after K. Stem:If K is the fourth valve opened, then which one of the following could be true? Correct Answer Choice:BChoice A:I is the second valve opened. Choice B:N is the third valve opened. Choice C:G is the fifth valve opened. Choice D:O is the fifth valve opened. Choice E:P is the sixth valve opened.