Answer:
Nie jestem pewna ale chyba wikingowie
Most if then where for slavery but a few where against it
Jonas Salk<span> </span><span>was an American </span>medical researcher<span> and </span>virologist<span>. He discovered and developed one of the first successful </span>polio vaccines in the 1950's.
Hope I helped. :)
Answer:
A.
<em>"left them unprotected."</em>
Explanation:
The most logical answer.