Actually, it is letter A...the first choice.
In 1865 President Andrew Johnson implemented a plan of Reconstruction that gave the white South a free hand in regulating the transition from slavery to freedom and offered no role to blacks in the politics of the South.
A. The Magna Carta was signed during the early 1200's.
A way to consider it is that the first century goes from year 0 to year 99. There for the 2nd century would be in the 100s and so on. Therefore the thirteenth century would be the 1200s.