Option B, to perfect the sample pattern, is the right answer.
Explanation:
Pattern Makers are those skilled craftsmen who design templates or samples for mass production. They usually design templates or samples for clothes, furniture, shoes or plastic-ware etc.
Their main task is to translate blueprints and create illustrations into factory patterns employing drafting software or freehand computation methods.
Regarding the anatomy of an arch, what is the springing line? The springing line is an imaginary line between where the curves of the arch begin on each side