Select the most appropriate word to fill in the blank.
The prisoner was very upset and angry and there was ______ in her voice.

Correct option is A

The correct option to fill in the blank is (a) bitterness.
Explanation: The tone of being "upset and angry" matches with the emotion of bitterness which denotes strong resentment or hostility. (कड़वाहट)
Example: There was bitterness in her voice when she recalled the incident.
· (b) Thickness: the quality of being thick (मोटाई)
· (c) Stillness: lack of movement (शांति)
· (d) Eagerness: enthusiasm or keenness (उत्सुकता)