Concept:Shirk means associating partners in worship with Allah. Monotheism means believing in the oneness of Allah. Monotheism is the opposite of shirk.Explanation:According to the Qur'an, shirk is setting up partners with Allah in worship. Trinity is a form of shirk because it gives partners to Allah. Polytheism is a form of shirk because it worships many gods. Monotheism is not a form of shirk because it worships only Allah. It is pure faith and is called Tawhid in Islam. Therefore, among the given options, monotheism does not belong to shirk.Answer:B. Monotheism