Read the following passage:
An increase in automobile use has led to increased demand for fuel. The extraction, processing, and delivery of fuel put harmful pollutants into the atmosphere. The fuel that is then consumed by engines creates carbon dioxide emissions. The carbon dioxide creates a greenhouse effect in the atmosphere. The gasses trap heat in Earth's atmosphere, leading to global warming. What does the author's word choice most clearly suggest regarding his feelings about automobile use?
A.He uses the words "led to" and "leading to" to show the connection between related ideas.
B. He traces the problems with greenhouse gasses and global warming to increased use of automobiles.
C. He uses the phrase "harmful pollutants" to express his feelings that people should stop using mass transit.
D. He uses the words "demand" and "consumed" to show his attitude that people are aggressive and destructive.