The best thesis statement would be:
A. Schools should encourage volunteering because it reduces stress, promotes personal growth, and has a positive effect on society.
This is the best because it provides the topic "Schools should encourage volunteering" and then it goes on to provide reasons for this that will most likely be described in the rest of the paper.
Hope this helps!
It's a rational number so it does not fit into those categories.
Sentence 1: Opinion
Sentence 2: Fact
Sentence 3: Fact
Sentence 4: Fact
Sentence 5: Fact
Sentence 6: Fact
Remember, a fact is a statement that can be proved to be true and opinions are what people think.
