Concept:Tahara is an Islamic term that denotes cleanliness or purity.Explanation:In Islamic terminology, Tahara refers to the act of purification.It includes minor purification through ablution (wudu) and major purification through bathing (ghusl).This purification applies to the body, clothing, and place of worship.The other options, such as marriage, intention, and worship, do not represent the meaning of Tahara.Answer:A. purification