If you are talking about the first air pollution problem its is A, almost about 100 years ago.
1955
Most likely the answer will be b because it is secondary.D could also be a choice but I recommend B
Answer:
The person who had these beliefs is Theodore Roosevelt
Louis XIV, known as Louis the Great or the Sun King, was King of France from 14 May 1643 until his death in 1715. His reign of 72 years and 110 days is the longest recorded of any monarch of a sovereign country in European history. Louis XIV's France was emblematic of the age of absolutism in Europe.
