Universal Design aims to create environments and products usable by everyone, irrespective of age, ability, or circumstances.
Step 1: Tolerance for error, a Universal Design principle, minimizes risks and consequences of accidental actions. It is achieved by designing products and environments that prevent or reduce the likelihood and negative effects of errors.
Step 2: Other principles address flexibility, intuitive use, and perceptible information, but do not directly focus on error reduction or unintended actions.
Therefore, the correct answer is (B) Tolerance for error.