Final answer:
Scoring the glass a second time can make it easier to cut.
Step-by-step explanation:
Scoring the glass a second time can make it easier to cut, so the statement "a) True" is correct.
When glass is scored, a small groove is created on the surface, which weakens the structure and allows for a controlled break along the score line.
By scoring the glass a second time, the groove becomes deeper, making it easier to cut the glass.