Let's take a look at some command economies: today: North Korea
In the past: The Soviet Union.
We can see that in both cases the countries failed to provide enough food and supplies for their citizens, so one way that command economies influence the citizens of the countries that had them was by inducing hunger. (the same is not true of mixed economies, or not always true).
When Alexius I Komnenoi implored the pope (Urban II) for help, he meant it to reconquer the lost Byzantine lands (and therefore return in to their de facto ruler, a.k.a., the Byzantines). Urban however, decided to merely use that as a façade in order to then invade the Muslims, and retake the holy land.
He also saw the wanted to unite Christianity as a whole (All the sects at the time, Orthodoxy, Catholicism, Paulicianism, Iconoclasts, etc. into a single conglomerate, fighting a common enemy.)
I think that the answer for you question would have to be C
Can you send me some of the choices
