The domestic electric appliances, these days, have star ratings (upto 5 stars) on them. The number of stars on them denotes that, more the number of stars-1 longer the life span of the appliance2 higher the energy efficiency of the appliance. 3 better performance of the appliance. Which of the above statement/s is/are true ?

• A. 1 only
• B. 2 only
• C. 1 and 2 both
• D. 1 and 3 both