What Was Congregationalist Minister Washington Gladden's Message in His Book

What was Congregationalist minister Washington Gladden's message in his book Applied Christianity?

A) Business leaders needed to return to Christ's teachings that called for the care of the poor and less fortunate.
B) Workers needed to follow the biblical teaching of "an eye for an eye and a tooth for a tooth" by using violence against harsh employers.
C) Membership in workers' unions needed to be restricted to white native-born Protestants.
D) The poor and destitute were a burden on American society and needed to be left to fend for themselves.