Which of the following two sentences does not make sense?
Options:
- Sentence A: "The Sun is the largest star in the solar system."
- Sentence B: "The Earth is the largest planet in the solar system."

Hmmm, let me think. I want to lay out the solution in details.
The earth is not the largest planet in the solar system as there are many planets that are larger than the earth. The answer is Sentence B.