What does "debilitate" mean?

The term "debilitate" refers to causing a loss of strength or energy; it means to weaken or enfeeble someone or something. When something is debilitated, it suffers a reduction in its capabilities or power, which can refer to physical strength, mental stamina, or even the efficiency of a system. This aligns perfectly with the correct answer, as it highlights the essence of the word's meaning.

The other choices offer contrasting ideas. For instance, to strengthen, enhance, or expose implies an increase in capability or a revealing of something, rather than a reduction. Therefore, the accurate understanding of "debilitate" lies in the concept of weakening, making the correct answer the most appropriate selection.