_____ involves identifying and measuring a worker's physical movements when performing tasks and then analyzing the results to determine whether some motions can be eliminated or performed more efficiently.

A) Time-and-motion study
B) The standardized job analysis questionnaire
C) The integrated approach to job analysis
D) A customized task inventory
E) A functional job analysis

Time-and-motion study is a systematic observation and analysis of workers' physical movements to improve efficiency, eliminate wasteful motions, and redesign processes to boost productivity. It involves breaking down complex tasks into smaller components and measuring the time it takes to perform each step, as well as identifying areas of potential improvement. The results can be used to develop standards and procedures that reduce errors, prevent accidents, and enhance work quality.