Answer:
had proven that Germany and mexico were allies
also promised that if war was the break out with the US, Germany promised to mexico their lost territory.
Edward Jenner
The smallpox vaccine, introduced by Edward Jenner in 1796, was the first successful vaccine to be developed
The CORRECT answer is C)4 and the Second Treaty of Indian Springs was signed by Chief William McIntosh in 1825. Therefore, the correct answer is number 4.