Assertion. Cut stumps pull the water column upwardly.
Reason. Transpiring leaves show exudation of sap.

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Solution

Both assertion and reason are incorrect.
Cut stumps exude water due to the positive root pressure and not due to the pull.
Transpiring leaves do not show exudation of sap. Exudation occurs when excess pressure develops in the xylem column such as when transpiration doesn't occur.

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