The four types of flexibility needed by businesses include all of the following except:

A) Employment flexibility
B) Pay flexibility
C) Community flexibility
D) Procedural flexibility

The three types of flexibility mentioned in the question are all relevant to businesses- employment flexibility (the ability to adjust to changes in staffing needs), pay flexibility (the ability to adjust pay for employees based on performance or market conditions), and procedural flexibility (the ability to adjust internal processes and procedures to improve efficiency or adapt to changes). However, "community flexibility" is not typically considered a type of flexibility needed by businesses.