Answer:
3. a gradual reduction in the strength of a response due to repetitive stimulation
Step-by-step explanation:
Habituation -
It is the method of learning , where the response to any stimulus reduces as the time passes , i.e. , after repetition , is referred to as habituation .
The response can be the intact organism i.e. full body response , or only certain components of the organism.
Hence , from the question,
The correct statement for habituation is 3. a gradual reduction in the strength of a response due to repetitive stimulation .