Of the following two sentences, which one is against common sense?
Options:
- Sentence A: "Brushing your teeth three times a year is good for your dental health."
- Sentence B: "Brushing your teeth three times a day is good for your dental health."
Let's reason step by step:
Brushing your teeth three times a year is too liitle to do any good to your teeth. Final answer: Sentence A.