Correct Option: C

A khanqah also known as a ribat is a building designed specifically for gatherings of a Sufi brotherhood, or tariqa, and is a place for spiritual retreat and character reformation. In the past, and to a lesser extent nowadays, they often served as hospices for Sufi travelers (salik) and Islamic students (talib). Khan-qahs are very often found adjoined to dargahs (shrines of Sufi saints), mosques and madrasas (Islamic schools).