Correct option is B
Option (b) is the correct meaning of the given idiom.
Get out of hand: This idiom means to become difficult or impossible to control. (काबू से बाहर हो जाना)
Example: The protest got out of hand and the police had to intervene.
Other similar idioms:
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Spiral out of control – To become uncontrollable.
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Run amok – To behave uncontrollably and disruptively.
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Go haywire – To go out of control or become chaotic.