Ritzer Argues That All Aspects of Our World Are Being

Ritzer argues that all aspects of our world are being rationalized through McDonaldization via four major mechanisms.One of those is the process of 'calculability',which of the following is an example such a mechanism?

A) using an explicitly stated and pre-programmed script so staff can quickly deal with customers
B) ensuring means of production - from produce through to staff - are of a minimal cost
C) using standardized procedures and machinery to produce standardized products and services so customers know what they are going to get irrespective of where or when they buy it
D) ensuring everyone wears the uniform,smiles at the customer and is extensively trained to ensure they stick to the pre-programmed script