Who wrote martin fierro

a: miguel cervantes

b: a gaucho

c: jose hernadez

To add you as a friend? and on you page i see you are good in math does that include statistics?

The correct answer is
1. black death

a deadly plague that swept through europe between 1347 and 1351, it killed one third of european population, but the left food supply give chances to survivors for advancement.

and

2. smallpox

an eradicated virus that used to be contagious, disfiguring, and often deadly.