Concept:Tawaf al-Wada is the farewell circumambulation performed by pilgrims before leaving Makkah.Explanation:When pilgrims are ready to head home, they perform a special Tawaf around the Ka'bah.This final rite is called Tawaf al-Wada, meaning farewell.During this rite, pilgrims circle the Ka'bah seven times.It marks bidding farewell to the Ka'bah as they conclude their pilgrimage.Among the given options, al-wada means farewell.Answer:C. al-wada