Assertion: For a reaction \[{{H}_{2}}(g)+{{I}_{2}}(g)\] ⇌ \[2HI(g)\] if the volume of vessel is reduced to half of its original volume, equilibrium constant will be doubled. Reason: According to Le-Chatelier principle, reaction shifts in a direction that tends to undo the effect of the stress. Read the assertion and reason carefully to mark the correct option out of the options given below:

• A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
• B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
• C. If assertion is true but reason is false.
• D. If the assertion and reason both are false.