55. What can we infer from the passage?
(A) People in the past tended to be faltering in their religious faith.
(B) There used to be an attempt to search for a single unified social science.
(C) Social science has branched out widely since it first started in the nineteenth century.
(D) Human societies were dominated by a supreme being in ancient times.
(E) People no longer believe in God as knowledge became more specialized.