Final answer:
Eid al-Adha concludes with the celebration of Hajj.
Step-by-step explanation:
The correct answer is D. Hajj.
Eid al-Adha is the celebration that concludes the Hajj pilgrimage, which is one of the Five Pillars of Islam. Hajj is a pilgrimage to Mecca that all Muslims are expected to undertake at least once in their lifetime, if they are physically and financially able.
During the Hajj, Muslims perform a series of rituals and prayers, including circling the Kaaba, standing on the plain of Arafat, and throwing stones at the pillars of Mina. The final day of Hajj is known as Eid al-Adha, or the Festival of Sacrifice, where Muslims commemorate the willingness of Ibrahim (Abraham) to sacrifice his son as an act of obedience to God.
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