Question

Which detail belongs in an essay about how to save electricity?

A. Lightbulbs come in many different sizes and shapes.
B. There are special lightbulbs that use one-quarter of the electricity of other bulbs.
C. A man named Humphrey Davey built the first electric lamp.
D. Thomas Edison is known as the inventor of the lightbulb.

Answer 1

The answer would be B. There are special lightbulbs that use one-quarter of the electricity of other bulbs. The reason is because it's giving an example of a way to save electricity.

Answer 2

the correct answer is B. the other options are wrong because they only talk about the history of lightbulbs, not how to save electricity.