Brady read this on a pamphlet at the dentist's office. Shinybrite is the best toothpaste on the market! Eight out of ten patients who tried Shinybrite Minty Creme liked it better than the leading brand of toothpaste. Shinybrite whitens teeth and freshens breath. Regular toothbrushing decreases cavities and gum disease. What is the writer's opinion, and what evidence is used to support it? 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. The writer's opinion is that Shinybrite is the best toothpaste. It is supported with the statistic that eight out of ten patients like it more than the leading brand. The writer's opinion is that regular brushing decreases cavities. It is supported with the fact that toothbrushing decreases gum disease. 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.

The correct answer is  B. The writer's opinion is that Shinybrite is the best toothpaste. It is supported with the statistic that eight out of ten patients like it more than the leading brand.

Explanation:

The writer's opinion or main position is the main point the author of the text tries to demonstrate by providing evidence. In the case of the pamphlet read by Brady the main position is expressed by "Shinybrite is the best toothpaste on the market" because, in this text, the main purpose is to convince the audience other toothpastes do not compare to Shinybrite.

Moreover, this idea is explained through two main details, the first one and most relevant is the use of statistics or numerical data in "Eight out of ten patients who tried Shinybrite Minty Creme liked it better" and the second detail are the benefits of this toothpaste.

churchill's serious tone makes it seem as though he is giving bad news rather than rallying support.

i would say a because the main idea is what the author is the point the author is trying to get across.