Time study is

A.The appraisal, in terms of time, of the value of work involving human effort
B.Time taken by a operator to set the job in a machine
C.The study of time that a group of workers will take to do a job
D.The method of fixing hours for workers
E.Method of determing the number of Supervisors needed in a workshop

Micromotion study is

A.Enlarged view of motion study
B.Analysis of one stage of motion chart
C.Motion study when seen on a time chart
D.Sub-division of an operation into therbligs and their analysis
E.Motion study with micro-seconds as units