How does a command economy answer the basic questions of what, how and for whom to produce

In a pure command economy, a central authority makes the major decisions about What, How, and for Whom to produce?

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.

the answer is c my brotha. c.   formed an alliance with the soviet union.