question_answer

  Consider the following statements about electricity and select the correct answer using the code given below:

1. Hydro-electricity is a clean source of energy.

2. Electricity is generated from water, coal, mineral oil, natural gas and atomic minerals.

3. Electricity is a relatively expensive source of energy.

4. The per head consumption of energy is an important indicator of economic development.

Code:

A)  1, 2 and 3 are correct    

B)  1, 3 and 4 are correct

C)  1, 2 and 4 are correct

D)  1, 2, 3 and 4 are correct