The store manager has decided that rather than have the cashiers take inventory at the end of each shift, he will complete the inventory himself each morning when he arrives so that he can stay on top of what needs to be ordered. In regard to the cashiers, this is an example of

 

Select one:

 

 a$.$ job specialization. 

 

 b$.$ a time and motion study. 

 

 c$.$ job simplification. 

 

 d$.$ skill variety. 

 

 e$.$ job enlargement.