5.
The answer is: A
Explanation
The correct option is A: Check.
The sentence aims to convey that the Centre (government) intends to implement new regulations to control or prevent the misuse of the internet. The word "check" means to restrain, control, or limit something, which fits perfectly in this context.
The other options do not fit as well:
"Correction" does not fit grammatically in the sentence.
"Change" does not convey the idea of control or prevention.
"Result" does not fit grammatically or contextually.