Consider the question. Choose the sentence that goes against common sense.
Options:
- Sentence A: "A keyboard has got a lot of keys"
- Sentence B: "A keyboard has got only a key"

 What is the step-by-step reasoning process to arrive at the answer: Sentence B?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
A keyboard wouldn't be useful with only one key.