What does it mean to "stupefy" someone?

To "stupefy" someone means to confuse or dull their senses, leading to a state of shock or astonishment. This term is often used when someone is so overwhelmed that their ability to think clearly or react intelligently is impaired. For example, a surprising piece of news or an overwhelming experience might stupefy an individual, leaving them momentarily at a loss for words or action.

The correct choice highlights this aspect of the term, emphasizing its association with a loss of clarity and cognitive sharpness. On the other hand, the other options suggest actions that enhance or engage mental faculties, which is contrary to the essence of being stupefied. Therefore, the meaning of "stupefy" aligns perfectly with the idea of dulling one's senses or causing confusion.