Since the Beginning of Modern Constitutional Reform Efforts in the 1960s

Since the beginning of modern constitutional reform efforts in the 1960s to the 1980s,

A) little real progress has been made.
B) more than half the states had new or substantially altered constitutions put into operation.
C) almost all of the states altered their constitutions to include fundamental law.
D) More than half the states had new or substantially altered constitutions put into operation and  almost all of the states altered their constitutions to include fundamental law .