Which of the Following Statements Is True About a Command

Which of the following statements is true about a command economy?

A) Shortages occur because of complexities in the planning process.
B) Planners determine what, how many, and for whom goods and services are to be produced.
C) Planners often allocate goods and services through a rationing system.
D) The quality of produced goods and services tends to be inferior.
E) All of these are true.