Given below are two statements: one is labelled as Assertion and the other is labelled as Reason:

Assertion: Separation of state and religion is sufficient for the existence of a secular state.
Reason: Many states which are non-theocratic continue to have a close alliance with a particular religion.

The Assertion is incorrect but the Reason is correct.

The correct answer is Option 3 - The Assertion is incorrect but the Reason is correct.

Assertion: Separation of state and religion is sufficient for the existence of a secular state.
Reason: Many states which are non-theocratic continue to have a close alliance with a particular religion.

The assertion is incorrect as some people think that the separation of state and religion is sufficient for the existence of a secular state. This does not appear to be so. 

Some people think that the separation of state and religion is sufficient for the existence of a secular state. This does not appear to be so. Many states which are non-theocratic continue to have a close alliance with a particular religion. For example, the state in England in the sixteenth century was not run by a priestly class but clearly favoured the Anglican Church and its members. England had an established Anglican religion, which was the official religion of the state. Today Pakistan has an official state religion, namely Sunni Islam. Such regimes may leave little scope for internal dissent or religious equality.