Correct Option: A

A secular state is a concept of secularism, whereby a state or country purports to be officially neutral in matters of religion, supporting neither religion nor irreligion. A secular state also claims to treat all its citizens equally regardless of religion, and claims to avoid preferential treatment for a citizen from a particular religion/non-religion over other religions/ non-religion. Secular states do not have a state religion or equivalent, although the absence of a state religion does not guarantee that a state is secular