Final answer:
America became recognized as a Superpower after World War II due to its strong economy and international alliances. The option (C) is correct.
Step-by-step explanation:
The conflict after which America became recognized as a Superpower was World War II. Following the war, the United States emerged as an economic superpower due to its industries and economic systems being undamaged.
The U.S. shifted its focus from producing war machines to consumer goods, which helped to strengthen its economy and establish international alliances for global peace and rebuilding. Therefore, option (C) is correct.