What is a requirement for the marking to be considered conspicuous?

For marking to be considered conspicuous, it must be easily noticed and understood. This means that the marking should be clear enough that anyone inspecting the package can quickly identify the information being conveyed without confusion. The concept of conspicuousness underscores the importance of the marking being straightforward and immediately recognizable to prevent any misinterpretation regarding the nature of the goods, compliance, or handling instructions.

While the other choices touch upon various aspects of visibility, they do not fully encapsulate the necessity for the marking to facilitate immediate recognition and understanding by anyone who might encounter it. For instance, markings on the outer packaging may help with visibility, but if they are not easily understood, they would not meet the requirement of being conspicuous. Similarly, while visibility at all angles and boldness might enhance the marking's prominence, the core requirement is centered on how easily the marking can be noticed and comprehended.