Eid al-Adha prayer is performed after sunrise and before the Zuhr prayer.
Zuhr is the midday salah, one of the five obligatory daily prayers in Islam. Eid prayer is therefore held in the morning, after the sun has risen sufficiently above the horizon but before the sun reaches its midday zenith. Local prayer times vary with geography and the season, so mosques publish a precise starting time.
The timing has a practical connection with the festival. Eid al-Adha prayer is generally offered relatively early, leaving time afterward for qurbani or udhiyah, the ritual sacrifice, where that observance is practiced. By contrast, Eid al-Fitr prayer may be delayed somewhat, traditionally allowing people to give the required charity before attending.
The other options are daily prayers at different points: Fajr is before sunrise, Asr is in the afternoon, and Isha is at night. Eid prayer is not performed between any of those three in the question; its upper boundary is the beginning of Zuhr's time.