The original purpose of nato (north atlantic treaty organization) was to
a) prevent another world war.

b) create free trade between all nations.
eliminate

c) limit pollution and the exploitation of natural resources.

d) provide for a defense pact against possible soviet aggression.

THE ANSWER IS D

Explanation:

NATO is a formal alliance between the territories of North American and Europe. From its inception, its main purpose was to defend each other from the possibility of communist Soviet Union taking control of their nation.

   D) Provide for a defense pact against possible Soviet aggression.

Explanation:  After the gradual withdrawal of the allies from the Second World War, the Soviet Union from one and Western allies on the other hand, threatened the spread of Communism. Instead of holding democratic elections in Eastern European states, Stalin imposed communism for the so-called World Communist Revolution. This with the Western allies caused certain fear and precaution against such Stalin's policy, and the military alliance of the Western allies - NATO was founded. Although the original purpose of forming the NATO alliance was a military alliance in order to prevent any possible Soviet aggression, nowadays NATO also takes part in assisting countries where, for example, natural disasters have occurred, and so on.

an unexpected salary cut

this means that germany had to pay the allied countries. reparations are/is essentially payment for something that they have done wrong, so after ww1, germany was forced to pay reparations so they could replenish the allied countries resources' that they had lost during the war.