<span>B) Pre-war alliances were made in secret and elevated diplomatic tensions within those governments.
Or sometimes the fact that alliances were being made was announced publicly -- but the negotiations about the alliances were conducted behind closed doors. And often the terms of the alliances were kept secret, so that only the parties involved knew the full details. This contributed to an attitude of escalating nervousness and tension as the nations of Europe maneuvered for strength over against their perceived adversaries.
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Generally speaking, a government may be able to reduce the international value of its currency by "<span>b. selling its currency in the foreign exchange market," since this "floods" the market with the currency in question, thus making it less desirable for investors. </span>
In an effort to stabilize the Cuban economic and social unrest, Castro created a one-party government to exercise dictatorial control over all aspects of Cuba's economic, political and cultural life. Every political dissent were suppressed ruthlessly. At the same time, he expanded the country's social services, extending them to all classes of society on an equal basis. This made educational and health services available to Cubans free of charge, and every citizen was guaranteed employment.
Class conflict (: I've already have learned about this.