Which innovative product marketing claim about the M1 Garand rifle helped secure its widespread adoption by the U.S. military during WWII?

During World War II, product marketing played a crucial role in military adoption and public perception of new weapons. The M1 Garand rifle, adopted by the U.S. military in 1936, was marketed as a revolutionary advancement in combat effectiveness. General George S. Patton famously called it "the greatest battle implement ever devised." This poll tests your knowledge about how the M1 Garand's innovative features were marketed to military leadership and the American public during wartime.

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It was marketed as the first semi-automatic rifle issued as the standard service rifle of any major military
Advertisements claimed it was the lightest infantry rifle ever produced, weighing 30% less than any competitor
Marketing materials emphasized its ability to fire specialized armor-piercing rounds unavailable to Axis powers
It was promoted as the most cost-effective infantry rifle, costing half as much to manufacture as bolt-action alternatives