In the classical word pair 'आधि - व्याधि' (Adhi - Vyadhi), what is the meaning of the word 'आधि' (Adhi)?

In traditional Hindi and Sanskrit literature, the terms 'आधि' and 'व्याधि' are paired to denote two forms of suffering:
* 'आधि' specifically refers to psychological or mental distress/pain (मानसिक कष्ट/चिंता).
* 'व्याधि' refers to physical diseases or illnesses (शारीरिक रोग).

Hence, Option A is correct.