They are the same. B.C.E is the modern adaptation of B.C.
B.C. --> A.D.
B.C.E ---> C.E
Most modern history textbooks use BCE and CE.
The correct answer is the reformation
During the French Revolution they sent men to "The New Work" and come across Native Americans. They began to study the Native People and incorporate some of their retrials.
A would be the answer to this