Assertion (A): Parliamentary system of government is based on me principle of collective responsibility. Reason (R): A parliamentary defeat is not necessarily a sufficient cause for resignation of the Ministry. Codes:

• A.  Both A and R are individually true and R is the correct explanation of A
• B.  Both A and R are individually true but R is not the correct explanation of A
• C.  A is true but R is false
• D.  A is false but R is true