DIRECTIONS: Consider the following statements and select the correct answer with the help of codes given below: Assertion [A]: Most of the weather changes are confined to troposphere. Reason [R]: Most of the atmospheric mass is contained in this layer

• A.  Both A and R are true and R Explains A
• B.  Both A and R are true but R does not explain
• C.  A is true but R is false
• D.  A is false but R is true