Motivated behavior results from the combination of individual needs and the value of the goals available in the environment, according to the basic idea underlying:

A) value and humanistic psychologists
B) expectancy-value theory
C) behavioral expectations approach
D) physiological theory

Expectancy-value theory proposes that individuals are motivated to engage in behavior based on their belief that they can successfully achieve a desired outcome (expectancy) and the value they place on that outcome. This theory takes into account both individual needs and the environmental factors that influence behavior. Option A refers to a specific branch of psychology that emphasizes the importance of subjective experiences and human potential, while options C and D do not fully capture the integrated approach of the expectancy-value theory.