Mateo works on an assembly line in a factory. Last month the assembly line processes were overhauled. Mateo is still responsible for soldering electrical contacts on an appliance component, but now he is also expected to review each component for quality defects after he solders. If he notes any defects, he can place the component in the scrap bin. If he scraps five such pieces in succession, he is permitted to press an emergency button which stops the assembly line completely. This job redesign reflects the $\_\_\_\_\_\_\_\_\_\_\_$ philosophy

Question $4$ options:

job rotation

job enlargement

job enrichment

job specialization