The correct word for the blank is Latent functions. Functionalists are termed as the thesis or the act of research that implies the mental health of the human being.
The term "latent functions" refers to functions that aren't recognized or intended. The people involved do not explicitly state, recognize, or intend a latent function of a behaviour.
As a result, observers can recognize them. A good example of a latent function is when doctors in a hospital treat a patient who is suffering from an incurable disease and somehow save the patient, thus exploring a new treatment method.
Therefore, the correct option is C.
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