One result of the contact between europeans and american indians was the spread of disease. which statement best describes the effect disease had on european and american indian populations?

According to history, the Native Americans contracted the diseases brought over from Europe by the first settlers, and since the Native's immune systems had never been in contact with these diseases, many died. Short American Indian populations were decimated by diseases brought by the Europeans.  

Explanation:

i think it's a)sparta

the answer is a, salt plain