Indicate what efficiency depends on

• A. Physical and mental development of the person, sex and age, experience, habits and skills, physical endurance, health
• B. Physical strength only
• C. Only luck
• D. None of the above

Answer: (A)

Efficiency in performing work tasks comes from the person as a whole, not a single trait. It is shaped by physical and mental development, age and sex, experience, habits and skills, physical endurance, and health. All these factors together affect how quickly and accurately a task can be done, how long one can sustain effort, and how safely it’s carried out. Saying it depends only on physical strength misses important contributors like cognitive ability and experience, while luck isn’t a reliable determinant of performance.