What Does Alfred Bandura Mean by the Term Reciprocal Determinism

What does Alfred Bandura mean by the term reciprocal determinism?

A) Personality is already determined when we are born,and so it shapes how we view and interact with our environment.
B) Personality is determined by our behaviour,our thoughts and feelings,in interaction with our environment.
C) Personality is the result of the environment,and only the environment can determine a person's personality.
D) Personality is determined by our behaviour,our thoughts and feelings,in interaction with our environment and is the result of the environment,and only the environment can determine a person's personality.