Of the Following, Which Statement Would Most Likely Be Endorsed

Of the following, which statement would most likely be endorsed by John Watson?

A) The best way to study conscious experience is to analyze its component parts.
B) We should examine how the mind helps us adapt to a complex and changing world.
C) People are capable of making conscious, rational choices, which can lead to growth and psychological health.
D) Because mental events cannot be observed, psychology should restrict its focus to observable, measurable behaviour