Which of the following was not among the steps taken by Exxon to spread doubt about climate change?

A) Funding nonprofits that called climate change into question.
B) Making campaign contributions to those who felt climate science was too uncertain to affect policy.
C) Hiring lobbyists to convince policy makers that climate change was uncertain.
D) Funding an in-house research team to produce unbiased analysis of the effects of carbon dioxide on the atmosphere.

Exxon

An American multinational oil and gas corporation, known as one of the world's largest publicly traded energy providers and chemical manufacturers.

Climate Change

A long-term alteration in global or regional climate patterns, often attributed significantly to human activities, especially fossil fuel combustion which increases greenhouse gas levels in Earth's atmosphere.

Carbon Dioxide

A colorless, odorless gas produced by burning carbon and organic compounds and by respiration, considered a greenhouse gas contributing to global warming.