Read the text carefully, then answer the questions

A. products that will not only work effectively, but also save money.

B. products that will work effectively.

C. products that will save money.

D. products that will create money.

A. replace an energy-saving bulb.

B. buy small light bulbs

C. replace an ordinary 100-watt light bulb with an energy-saving bulb.

D. use big light bulbs

A. tells the consumers how much energy effectively each model has, compared with other appliances in the same category.

B. replaces an ordinary 100-watt light bulb with an energy-saving bulb

C. saves energy

D. saves money

A. save about US$21

B. conserve the Earth’s resources

C. save money

D. save money as well as conserve the Earth’s resources.