Managers at a Mid-Sized Department Store Decided to Change to an Automated

Managers at a mid-sized department store decided to change to an automated inventory system that would require sales clerks to enter a nine-digit code for each article of clothing sold. Once in place, managers designed an evaluation process. The clerks, however, were highly resentful of the new system and frequently 'forgot' to enter the code. What is wrong?

A) the managers failed to unfreeze the situation
B) the managers failed to change the situation
C) the managers failed to refreeze the situation
D) the managers failed to unfreeze and refreeze the situation