The Labor Management Relations Act of 1947 29 U.S.C. § 141-197, better known as the Taft–Hartley Act, (80 H.R. 3020, Pub.L. 80–101, 61 Stat. 136, enacted June 23, 1947) is a United States federal law that restricts the activities and power of labor unions
The correct answer is: "
The vitaphone increased the reliability and quality of sound for audiences"
The vitaphone was a sound system created for films, used for feature film and almost a thousand short subjects by Warner Bross. It was the first analog sound-on-disc system that was commercially sucessful and widely used.
For example, <em>The Jazz Singer</em> (1927) used the vitaphone system.
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The answer should be:
Established the tradition and mechanism of permanent federal employment based on merit rather than on political party affiliation</span>
