What Is a Proper Description of a Kaizen Event

Multiple Choice

What is a proper description of a Kaizen Event?
1) An activity associated with identifying hidden wastes
2) An activity associated with cross functional moral building
3) An activity associated with increasing sales performance
4) An activity associated with maintenance scheduling

A) (2)
B) (3) and (4)
C) (1)
D) (1) and (2)