In work study would include.

Question

Consider the following steps:       

         1. Method time measurement

         2. Work sampling

         3. Work factory system

         4. PMTS (predetermined motion time systems)

         In work study would include.

         (a) 1, 2 and 3                  (b) 1, 3 and 4

         (c) 1,2 and 4                   (d) 1, 2 and 3