Which of the Following Generalisations About Organisational Structures and Employee

Which of the following generalisations about organisational structures and employee performance and satisfaction is most true?

A) It is probably safe to say that no evidence supports a relationship between span of control and employee performance.
B) No one wants work that makes minimal intellectual demands and is routine.
C) There is fairly strong evidence linking decentralisation and job satisfaction.
D) The evidence generally indicates that work specialisation contributes to lower employee productivity.