What is the writer's opinion, and what evidence is used to support it?

A.The writer's opinion is that Shinybrite whitens teeth. It is supported with the statistic that eight out of ten patients like it more than the leading brand.
B. The writer's opinion is that Shinybrite is the best toothpaste. It is supported by the statistic that eight out of ten patients like it more than the leading brand.
C. The writer's opinion is that regular brushing decreases cavities. It is supported by the fact that tooth brushing decreases gum disease.
D. The writer's opinion is that the toothpaste freshens breath. It is supported by the fact that Shinybrite is the best toothpaste on the market.