Reason
Since forward reaction is endothermic in nature and volume of water is greater than that of the volume of ice.
Assertion
For the physical equilibrium H₂O(s) ⇌ H₂O(l) on increasing temperature and increasing pressure more water will form.
a. both assertion reason are correct and reason is the correct explanation for assertion
b. both assertion reason are correct and reason is not the correct explanation for assertion
c. assertion is correct but reason is incorrect
d. both assertion and reason are incorrect