Assertion .Gram negative bacteria do not retain the when washed with alcohol.
Reason . The outer face of outer membrane of Gram negative bacteria contain lipopolysaccharides a part of which is integrated with membrane lipids.
A. If both assertion and reason are true and the reason is a correct explanation of the assertion.
B. If both assertion and reason are true but reason is not a correct explanation of the assertion.
C. If the assertion is true but reason is false.
D. If the assertion and reason are false.