Water is flowing in a rectangular channel that has a width b1 = 3 m with a depth y1 = 1 m. Then the channel width expanded to b2 = 4 m with a depth yz. If the channel flow has a Froud Number NF = 2.12, which of the following is true about y2. O A. y2 is less than y1 B. y2 = 2.12 m OC. Not enough information is provided to find out D. y2 is larger than y1