Answer:
D, oil was discovered on the Arabian peninsula.
First, it was a very cool climate in the early fourteenth century when the crop failure happened. Also, irregular lengthy rain patterns killed the crops very fast.
Here are the consumerism cycle :
Earn money >> Buy stuff >> consume >> Want more >> Back to Earn money
on this Cycles, the manufacturers role is to provide a product that the market is lusting for, promoting Consumerism
