Final answer:
The correct option to complete the sentence is 'A. perturbation'.
Step-by-step explanation:
The correct option to complete the sentence is A. perturbation. This word means a feeling of anxiety or unease, and it fits well in the context of the sentence where the angler is wrestling a huge bass without showing signs of fatigue or perturbation.
An example of using 'perturbation' in another sentence could be: 'Despite the challenging circumstances, she faced the difficult situation with calmness and a complete lack of perturbation.'
Therefore, the angler wrestled the huge bass for an hour without the slightest sign of fatigue or perturbation.
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