The answer to your question is D. By angering foreign trade partners.
Answer: The south seceded because Abraham Lincoln was elected president
Explanation: Since Lincoln was an abolitionist, the economic interests of the slave-owner southern landowners were threatened, as it would mean economic ruin, since it meant they would have to pay wages and a change their way of life.
Answer: Containment was a foreign policy strategy followed by the United States during the Cold War. First laid out by George F. Kennan in 1947, the policy stated that communism needed to be contained and isolated, or else it would spread to neighboring countries.
Explanation: Hope this helps pleaseee mark brainliest!