The correct answer is b) A president addressing the nation.
Oration is a formal speech given usually at an official occasion, such as a president giving a speech. Orations are usually given at funerals, weddings, formal ceremonies, such as graduation, in the court of law, at conferences, inaugurations, etc.
The most likely reason why Gabriel choose to write his essay with this point of view is because, a narrative essay tells a story about the writer's life, therefore it is most effective to tell the story from the writer's point of view. The correct option is B. In the passage given above, Gabriel wrote the passage based on his own perspective.
1) most common natural disasters
2)what are natural disasters
3) where are natural disasters most common