Assertion: Deficiency of sulphur causes chlorosis in plants.Reason: Sulphur is a constituent of chlorophyll, proteins and nucleic acids.

• A. Both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.
• B. Both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.
• C. Assertion is true but the Reason is false.
• D. Both the Assertion and the Reason are false.