The working depth of the gear illustrated is represented by __________. Refer to Illustration GS-0111

Correct Answer: Option C — A

In gear terminology, the working depth is the radial distance between the addendum circle and the dedendum circle. According to illustration GS-0111, the dimension labeled 'A' represents this specific working depth, which is the sum of the addendum and dedendum, essential for proper gear mesh and power transmission.