Single/multi-choice problem: Which of the following solutions is better for the following goal:
How are slip gauges made?

pick from the following.
[A]. Most of the slip gauges are produced from high grade steel, hardened and stabilized by heat treatment process to give a high degree of dimensional stability;
[B]. Most of the slip gauges are produced from high grade steel, hardened and stabilized by a laser treatment process to give a high degree of dimensional stability;
[A].