The following question has a sentence with three parts marked as (a), (b), (c). Read each sentence part to determine whether there is any error in any part and indicate your response against the corresponding letter, i.e., (a) or (b) or (c). If you find no error, your response should be indicated as (d).
a: A secular state is one in which the state do not
b: officially promote any one
c: religion as the state religion.