Synonym of PREVENT

Answer: Option B

Restrict : put a limit on; keep under control.
Stop : (of an event, action, or process) come to an end; cease to happen.
Interrupt : stop the continuous progress of (an activity or process).
Obstruct : block (an opening, path, road, etc.); be or get in the way of.
Prevent : keep (something) from happening.

Synonym of Prevent is Stop