Answer:
C). Theory Z
Explanation:
'Theory Z' proposed by William Ouchi was the management technique that gained popularity during the 1980s. The approach is basically a blend of 'Japanese as well American philosophies of management' in order to promote a greater extent of job security, enhanced productivity, and a great degree of employee satisfaction and self-esteem. This theory drastically helped in bringing a downfall in turnover of employees and enhanced productivity. Thus, option C is the correct answer.