If a cell A with DPD, 4 bars is connected to cells B, C, D whose OP and TP are respectively 4 and and 4, 10 and 5 and 7 and 3 bar, the flow of water will be:

1. C to A, B and D

2. A and D to B and C

3. A to B, C and D

4. B to A, C and D

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