Assertion : Some bacteria have the capacity to retain Gram stain after treatment with acid alcohol. Reason : They are known as Gram positive as they are attracted towards positive pole under influence of electric current.

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