Honestly - in a truthful, fair, or honourable way.
Perfectly - in a manner or way that could not be better.
Completely - totally; utterly.
Excruciatingly - to an intensely painful degree.
The given sentence mentions the jury's response on what the victim had to say about the incident. 'Honestly', 'perfectly', and 'excruciatingly' do not fit here contextually as an adverb for the adjective 'satisfied'.
Filling the blank with 'completely' would give the meaning that the jury was fully satisfied with the victim's version of the incident.
The correct sentence is: When the victim narrated his version of the incident, the jury was completely satisfied.
Hence, option (c) is the answer.
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