Why Were American Catholics Troubled by Protestant Efforts to Evangelize

Why were American Catholics troubled by Protestant efforts to evangelize in Spain's former colonies?

A) They believed that the peoples of the Caribbean and the Pacific were ill-suited to Christianity.
B) The people of those territories were already Christians who belonged to the Catholic Church.
C) They thought that the people of these predominantly atheist lands should be converted to Catholicism.
D) Protestants, the Catholics insisted, were not Christians.
E) Protestants pretended to be Catholics in order to gain more converts.