Which of the following does NOT occur in the pressure-flow mechanism of translocation?

a. Sugar molecules are actively loaded into the source end of the sieve tube, increasing the solute concentration.
b. A flow of sugar takes place along the vessel elements between source and sink.
c. At the sink end of the sieve tube, sugars are unloaded, and as the solute concentration drops, water leaves into the xylem due to osmosis
d. Translocation of sugars down the phloem aids the transport of water and minerals up the xylem.

It’s definitely not A… So either, B, C, or D

Thanks in advance :)

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