Research on Maslow's Hierarchy of Needs Has ____

Research on Maslow's hierarchy of needs has ____.

A) provided support for the view that lower needs must be fulfilled before attention can be given to higher order needs
B) provided support for the view that as lower needs are satisfied, higher order needs are automatically addressed
C) not provided much support for its major hypotheses
D) provided support for the idea of a hierarchy but failed to confirm the existence of the needs he proposed