Which PRINCE2 principle is supported by the setting of tolerances for the three levels of plan?

Which PRINCE2 principle is supported by the setting of tolerances for the three levels of plan?
A . Manage by stages
B . Manage by exception
C . Continued business justification
D . Learn from experience

Answer: B

Explanation:

The PRINCE2 principle supported by the setting of tolerances for the three levels of plan (Project, Stage, and Team Plans) is "Manage by exception." This principle allows management to set predefined tolerances for project objectives, and only escalate issues to higher management if these tolerances are exceeded, thereby facilitating efficient use of management time and focus.

Reference: PRINCE2 Foundation manual, PRINCE2 official resources