The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
NaOX is a salt of weak acid (HOX) are strong base (NaOH).
On hydrolysis, NaOX forms strong base NaOH and weak acid HOX.
Hence, the aqueous solution of NaOX is alkaline.
Thus, both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.