<h2><em>A. is your answer.</em></h2><h2><em>Hope this helps and have a nice day! o/</em></h2>
He was<span> born in </span>Virginia<span>, to a wealthy family and grew up at their estate called </span><span>Montpelier.
hope this helps you</span>
Answer:In 1947, Salk took a position at University of Pittsburgh, where he began conducting research on polio, also known as infantile paralysis. By 1951, Salk had determined that there were three distinct types of polio viruses and was able to develop a "killed virus" vaccine for the disease.
Explanation:
The american one stayed mainly between the U.S. and Great Britian, until the French joined. The french one was happening between the lower class french and the french government then i evoled like a pokemon into the french fighting athor monarchies in europe like austria and purssia. i really hope this helps you.