I think maybe is the B...
Answer:
In former President Obama's speech, he puts emphasis on the need for immediate action on environmental impact caused by society, he uses persuasive techniques by mentioning examples of environmental impact such as Fiji villagers being forced from their homes due to rising sea levels and melting glaciers in Alaska. It appears that he tries to appeal to peoples feelings and ethics by using pathos and ethos in his argument.
He also appeals to the audiences logic by using logos for example, his mentioning of uninterrupted job growth. While still being able to increase use of clean energy as opposed to unclean energy. And also providing reassurance that there have been successful cases of increasing use of clean energy. He mentions the Paris agreement and it's change for the better in the environment.
