Assertion : Histones are acidic proteins .
Reason : Cellobiose is an example of disaccharide.
A. If both assertion and Reason are true and the Reason is the correct explanation of the assertion .
B. If both Assertion and Reason ate true , but the reason is not the correct explanation of the assertion .
C. If Assertion is true , but Reason is false
D. if both Assertion and Reason are false.