There are three main languages in europe <span />
Short answer C
A is wrong. The oil producing countries in the middle east do not have a manufacturing base.
B is also wrong. Saudi Arabia is the largest exporter of oil. There is no need for them to import any oil at all. They produce a very clean low content sulfur type of oil.
C is the answer <<<<< answer
The answer is (D).To strictly limit the amount of time a person can remain politically active