What does "torpor" refer to in terms of mental and physical state?

The term "torpor" describes a state characterized by a significant lack of energy, alertness, or motivation, resulting in diminished physical and mental activity. It suggests a condition where an individual feels lethargic or sluggish, both mentally and physically. This aligns perfectly with the concept of extreme mental and physical sluggishness, as it indicates a reduced capacity to engage actively with one's environment or tasks.

In this context, the other choices relate to states of heightened activity or awareness, which directly contrast with the meaning of "torpor." Therefore, recognizing torpor as a state of low energy and engagement clarifies why it is defined as extreme sluggishness.