Both yellow journalism and the explosion on the battleship maine contributed to the u.s. decision to go to war against spain. what was the reason for going to war against spain?
a) to prevent spain from attacking florida
b) to protect u.s. investments in cuba
c) to keep spain from attacking venezuela
d) to stop cuban rebels from overthrowing spanish rule

Explanation:

Spanish American war was armed conflict between US and Spain n 1898.  The US intervened in the Cuban war of independence after the explosion USS Maine in Havana Harbour. The major battles were fought in Cuba and Philippines. After the war US became the dominant power in the Caribbean region and acquired Spanish Territories in the Caribbean region. As a result of the war US gets Puerto Rico, Guam and the Philippine Island to US for 20 million dollars.

President McKinley didn't resisted going to war but he gave in to public pressure and declared war on 25th April 1898. The war ended on August 12, 1898.

by winning a global war against France

The British won a war against Spain and France which resulted in the treaty of 1763, which gave Britain both Canada and Florida, making it the dominant power in North America.

Source (transcript of a video included in my online school lessons):

"Britain formally declared war on France in 1756, but the new commander in America, Lord Loudoun, fared no better than his predecessors. British fortunes improved when William Pitt became the new leader in London. With money he had borrowed, Pitt paid Prussia to wage war on France in Europe, and financed colonial militias in North America. The colonial troops won several important victories in 1758 and 1759. The most crucial came in September of 1760, when the British captured Montreal, forcing France out of Canada. After that, Spain and France joined forces to fight Britain in other parts of the world. A peace agreement was reached among the three countries in 1763. France lost all of Canada to Britain as well as New France from the British colonies west to the Mississippi River, but it retained its hold on the valuable West Indies, or “sugar islands.” Spain lost Florida to Britain while gaining Louisiana from France. Just thirteen years later, the British colonies would declare their independence."