Assertion (A): If the resistance of shunt of an ammeter is increased, the range of ammeter is reduced.Reason (R): If the series resistance of a voltmeter is increased, the range of voltmeter is increased.

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