After realizing the need for energy conservation, Rahul decided to change various ways in his routine and use new methods. He started using a bicycle to go to school instead of a car. At home, he told his sister to turn off the computer and TV when not in use. He also asked his father to replace all the incandescent bulbs in his house with CFL bulbs. He started turning off the lights during the day and used maximum of the daylight. However, because Rahul loves the cool comfort of AC, he decided to install centralized air conditioning in his house. Now, according to you, which activity is not related to energy conservation?

• A. Use of CFL Bulb
• B. Switching off the computer when not in use
• C. Home centralized air conditioning
• D. Use of bicycle to commute