In Reference to the Micro-Mezzo-Macro Approach, the Micro Level Refers

In reference to the Micro-Mezzo-Macro approach, the micro level refers to:

A) Aspects of the individual such as biological, psychological, developmental, spiritual, etc.
B) Elements of the individual's physical environment such as neighborhood, school, church, etc.
C) The medical model
D) Elements of the individual's immediate social environment such as family, friends, co-workers, etc.