Which of the Following Statements Regarding the Set Point Concept

Which of the following statements regarding the set point concept is most accurate?

A) The set point notion is only a myth and has not been empirically substantiated by research.
B) Researchers agree unanimously that there is no such thing as a set point and research continues to determine whether people can "settle in" to a new weight.
C) The vast majority of researchers assert that the set point concept is invalid and holds false for the body weight of all persons.
D) Some researchers feel it is a valid concept, while others argue that though it is difficult, it is possible to "settle in" to a new weight.