In June 1812, the United States declared war against Great Britain in reaction to three issues: the British economic blockade of France, the induction of thousands of neutral American seamen into the British Royal Navy against their will, and the British support of hostile Indian tribes along the Great Lakes frontier.
The right answer is A. Puerto Rico. The size of Puerto Rico is 9104 Km^{2}. With the Treaty of Paris signed in 1898 Spain renounced all claim to Cuba and ceded Guam and Puerto Rico. Guam is a very small island in the Pacific Ocean. With this war the United States emerged as a world power with far-flung overseas possessions and a position in international politics.