Which of the following contributed to the quick victory for the u. s. in the spanish-american war? select all that apply: a: the rough riders and buffalo soldiers won the battle of san juan hill b: the u. s navy took control of the manila harbor in the philippines. c: the spanish lost most of their troops to yellow fever, malaria, and typhoid fever. d: the united states asked for assistance from the mexican government. will give 40 points to anybody that gives the correct answer.