What is the direction of movement of sugars in phloem?

Consider the following statements and choose the correct option from the codes given below:
$I.$ Loading of phloem is related to the increase of sugar in phloem.
$II.$ Active loading of sugar in the sieve tube of phloem is driven by a proton pump.
$III.$ Pressure may be positive or negative in sieve tube cells.
$IV.$ Water and solutes move through the sieve tube against the pressure gradient.
$V.$ Cytoplasmic strands pass through the holes in sieve plates and form continuous filaments.

The following figure illustrates the pressure-flow hypothesis. Which of the following represents the source?

Gradient pressure was given as a possible mechanism of translocation of food by

When a plant stem is cut using a suitable method,a few drops of fluid are obtained. Which of the following tests,when performed on this fluid,confirms that it is phloem sap?

When sugars enter sieve tubes,water flows by osmosis,resulting in: