Final answer:
The option not under consideration for Puerto Rico's future is becoming a Cuban territory. The main considerations are to remain a Commonwealth, become a state, or become independent. option C is the correct answer.
Step-by-step explanation:
The option not under consideration for the future of Puerto Rico is C) Become a Cuban territory. Currently, the main options for Puerto Rico's political status include remaining a Commonwealth, becoming a U.S. state, or becoming an independent country. Puerto Rico has been a U.S. Commonwealth since the conclusion of the Spanish-American War and the signing of the Treaty of Paris, and its relationship with the United States has evolved over time. Puerto Ricans were granted U.S. citizenship in 1917, and while the island has considerable autonomy and its residents participate in democratic elections for their own government, they do not have full voting rights in U.S. presidential or congressional elections.