Correct option is C
The Mauryan pillar at Sankisa is notable for having a large elephant capital on top.
This is distinct from other pillars which usually feature the lion (like at Sarnath), bull, or horse.
Sankisa (Sankasya) is a historical site in Uttar Pradesh, associated with Buddha's descent from Tushita heaven.
The elephant symbolizes Queen Maya’s dream and the Buddha’s conception, making it symbolically significant in Buddhism.
Sarnath pillar – Has the famous Lion Capital, now the National Emblem of India.
Lauriya Nandan pillar – Has a single lion capital.
Rampurva pillar – Has bull and lion capitals (two different pillars).