PLEASE HELP QUICK :Which of the following statements BEST explains how command economies have changed over time? A.

Command economies have failed immediately when attempted.

B.

Command economies have become more common since 1986.

C.

Command economies have experienced some success, but have declined economically.

D.

Command economies have completely succeeded each time they have been used.

D

Explanation:

Because a command economy is being used in china and china's economy is going very well hence the question, Command economies have completely succeeded each time they have been used.

answer: not really

explanation: the disadvantages of wikipedia are:

the advantages of wikipedia are

19th amendment granted women the right to vote. the 19th amendment guarantees all american women the right to vote.