Examine the following statements about span of control and identify the ones which are true?
1. More task complexity requires narrower span of control.
2. Routine tasks can have greater span of control than exceptional tasks.
3. When tasks are dissimilar, then span of control can be larger.
4. Spans of control are generally narrower at the top and broader at the bottom of the hierarchy.

A. Both 1 and 2

B. 1, 3 and 4

C. Both 2 and 4

D. 1, 2 and 4

Answer: Option D