Concept:"Vehemently" is an adverb that describes protest carried out with intense passion and strong force.
Explanation:The word "vehemently" shows the manner in which the followers protested against their leader's arrest.
It means doing something with great energy, strong emotion, or deep conviction.
In this context, the followers did not merely raise objections; they expressed their opposition with power and insistence.
"Forcefully" is the best match because it also means acting with strength and determination.
The other options fail to capture the full meaning of the word.
"Loudly" refers only to high volume, not strength of feeling.
"Angrily" focuses on a single emotion, while "vehemently" can describe any intense feeling.
"Dangerously" suggests physical risk, which is not part of the meaning of "vehemently."
Therefore, "forcefully" is the most direct and accurate synonym for "vehemently" in this sentence.
Answer:A. forcefully