B. Walter Rauschenbusch
Rauschenbusch was a theologian who wrote Christianity and the Social Crisis in 1907, so that is the correct. Upton Sinclair was a muckraker, who wrote "the Jungle". Jane Addams was a suffragette and Ida Tarbell was another muckraker. So, A, C and D are not correct.
The members of the congress.
Europeans' views of Muslims
Explanation:
Europeans' views of Muslims changed during the Crusade when they travelled to a Muslim land. Europeans were very much attracted to the spices, fabrics, and other goods which were new to Europeans. Some of the items that reached Europe from the Muslim land were silk, spices, textiles, carpets also foods like sherbet, fruits, sugar, coffee, and rice. Sailing compasses, carpets, and wooden furniture also reached Europe.