Which of the following is NOT a current model of the MacBook line?

The MacBook Mini is not a model currently available in the MacBook line. The existing models include both the MacBook Air and the MacBook Pro, which are well-known for their lightweight design and powerful performance tailored to different user needs. The MacBook itself also exists, although it has seen less frequent updates compared to the other models.

The MacBook Mini is a misnomer, as Apple does not have a product with that specific name within its MacBook offerings. This distinction underscores the importance of recognizing brand and product names correctly, especially in technical environments where accuracy is crucial for effective customer support and troubleshooting.