Answer:
b. waxy flexibility
Explanation:
Waxy flexibility -
It is the symptom of catatonia , which is linked with some mental disorder like , bipolar disorder , schizophrenia etc.
In this symptom the person is not able to respond to any external as well as internal stimuli , and remain in a stable and constant posture .
Hence , from the given scenario of the question ,
The correct answer is b. waxy flexibility .