01 What should be done with unnecessary construction lines after completing the drawing?
Answer and explanation
Correct answer: A. They should be carefully lightened or erased
Explanation: Construction lines are temporary guides used to establish placement, proportion, and structure. Once the final contours and important edges are confirmed, unnecessary guides should be lightly erased or reduced so the finished drawing looks clean. Option A is correct. Darkening, wetting, or colouring these guides would make the work untidy, damage the paper, or distract from the intended forms.