Which theorist defines a person as "an adaptive system…a whole comprised of parts that function as a unity for some purpose"?
a. Martha Rogers
b. Sister Callista Roy
c. Jean Watson
d. Myra Levine
Ans: b. Sister Callista Roy
Explanation: Roy defines a person as an adaptive system, a whole composed of parts that function as a unity for some purpose. Levine's theory focuses on conservation. Watson developed the theory of human caring. Rogers's theory focuses on the person as a unified whole.
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