The answer is B
Systemized process of creating inventions
USA had a better navy. (The White Fleet?)
USA was backed by guerrlia warfare in the Philippines.
USA had terrible guns going against the Spanish in the San Juan hill.
The USA Springfield Gun 1892 - 99 side clip was highly inefficient compared to the Spanish Mauser.
The Spanish had more firepower the Maxim beat the Gattling Gun.
The Persian Gulf War was fought to drive out the invading Iraq's troops from Kuwait.
The radiation left after the war. Along with the many people who died thereafter for many years. This also caused a nuclear war of sorts later on with Russia.
