The term 'Yoga' originates from Sanskrit. According to Vyas, a prominent commentator on Yoga texts, the word 'Yoga' is derived from the Sanskrit root word 'Yuj'.
The root 'Yuj' has several meanings, but in the context of Yoga philosophy, it is specifically linked to concepts of concentration, meditation, and union.
Among the options provided, 'Yuj Samadho' directly relates the root 'Yuj' to the state of 'Samadhi', which signifies deep concentration or meditative absorption. This aligns with the philosophical understanding of Yoga as a practice to achieve mental stillness and self-realization.
The correct option explaining the derivation according to Vyas is C.