Determine the direction of water movement in the given diagram (assuming $P$ has a water potential of $-10 \text{ bars}$ and $Q$ has a water potential of $-5 \text{ bars}$).

  • A
    $P \rightarrow Q$
  • B
    $Q \rightarrow P$
  • C
    No osmosis occurs.
  • D
    None of these.

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