On close examination of the body motions, it is possible to find out:

All of these

Motion study refers to the study of movements like lifting, putting objects, sitting and changing positions, etc., which are undertaken while doing a typical job. Unnecessary movements are sought to be eliminated so that it takes less time to complete the job efficiently. For example, Taylor and his associate Frank Gailberth were able to reduce motions in brick layering from 18 to just 5. Taylor demonstrated that productivity increased to about four times by this process. On close examination of body motions, for example, it is possible to find out:
(i) Motions which are productive
(ii) Motions which are incidental (e.g., going to stores)
(iii) Motions which are unproductive