Explaining pencil grades
Step 1: Pencil grades indicate hardness (H) or softness (B). H pencils have harder graphite, producing lighter lines, while B pencils have softer graphite, producing darker lines. HB is the middle grade.
Comparing grades
Step 2: Among the options:
- 2H: Harder, produces a lighter line.
- HB: Medium, produces a medium line.
- 2B: Softer, produces a darker line.
- 4B: Even softer, produces an even darker line.
Evaluating options
Step 3: The lightest line is produced by the hardest pencil, which is 2H.
Thus, the correct answer is (A).