The tactic that deliberately permits an attack to continue while the entire event is observed and additional evidence is collected is called as Watchful waiting.
Evidence refers to something that provides proof or points toward a conclusion. It is also used in the courts to justify the person fighting against the other in order to prove his or her innocence.
Watchful waiting is a method that allows an operation to proceed while the entire incident is watched and further evidence is gathered. Therefore, it can be concluded that Watchful waiting is the correct option for the given bank.
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