Assertion : The Dumas method is more applicable to nitrogen containing organic compounds than the Kjeldahl’s method. Reason : The Kjeldahl’s method does not give satisfactory results for compounds in which nitrogen is directly linked to oxygen.

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