The period of political, social, and economic changes in the South after the American Civil War is known as ________ .
A.French
B.Reconstrction
C.Booderee
D.The Grand Canyon
E.a Governor-General
F.James Joyce
G.the Germanic dialects
H.Montreal
I.Little Rock
J.Patrick White
K.the Australian Labor Party (ALP)
L.weapons of mass destruction (WMD)
【正确答案】：B