Answer: False.
Explanation: Even though The American Federation of Labor and Congress of Industrial Organizations (AFL–CIO) represents the largest federation of unions in the U.S. with more than 12 million active and retired workers, it does not mean that they are the only one in the country, as Change to Win Federation, for example.
<em>Baruch S. Blumberg invented </em><span><em>a vaccine for smallpox for which he won noble prize in 1976.</em></span>
President Ronald Reagan's policies had a positive effect on the country overall. He had a plan for the country's economy that included cutting taxes, deregulation, and reducing the size of government. Because of his policies, he was able to be re-elected and help America improve further.
I think the 3rd answer is correct