Step 1: Understanding Pencil Grades.
Pencil grades with the "B" label are softer pencils that produce darker lines. The higher the number before the "B", the softer and darker the pencil. 6B is the darkest pencil among the options provided.
Step 2: Verifying the Options.
- Option (1): 2B is softer than B, but not as dark as 6B.
- Option (2): 6B is the darkest pencil, as it is the softest in the B category, making this the correct answer.
- Option (3): B is a medium pencil that produces a medium
-dark line.
- Option (4): 4B is soft but not as dark as 6B.
Conclusion:
Therefore, the correct answer is (2) 6B.