Bhagavad Gita, Chapter 10, Verse 22

I am the Sâma-Veda of the Vedas, and Vâsava (Indra) of the gods; of the senses I am Manas, and intelligence in living beings am I.

Naming consciousness itself as a real manifestation points at something more fundamental than any single sense or ability.

Without attention, the mind's chosen example here, none of the senses actually function, and without consciousness, nothing is alive at all. Both picks are shown as the real precondition behind everything else on the list.