Given the following passage  "The teachings on the Four Noble Truths are regarded as central to the teachings of Buddhism, and are said to provide a conceptual framework for Buddhist thought. These four truths explain the nature of dukkha (suffering, anxiety, unsatisfactoriness), its causes, and how it can be overcome. The four truths are:[note 4]",  answer the following question. Note that the answer is present within the text.  Question: What does dukkha explain: Anxiety or Conceptual?
A:
anxiety