Answer:
D). Begging the question.
Explanation:
A fallacy is demonstrated as the error or flaw in reasoning due to a deceptive belief that leads to ruin the soundness and validity of the argument.
'Begging the question' fallacy is elucidated as the logical flaw in an argument in which the premise that should function to support the claim rather assumes the validity or truth of the conclusion.
In the given example, the premise('right is guaranteed by the Constitution') is assuming the legitimacy or authenticity of the conclusion('the government has no right to spy on its citizens') instead of merely supporting it. This creates a lack of logical validity in the argument and thus, the credibility of the argument is spoiled. Thus, option D is the correct answer.