Which of the following was the largest automotive safety recall in history, affecting over 100 million vehicles worldwide?

The transportation industry has experienced numerous product recalls throughout history, but one stands out as particularly significant. This trivia question tests your knowledge about the largest automotive safety recall in history, which affected millions of vehicles worldwide and had major implications for vehicle safety standards, manufacturing practices, and consumer trust in the automotive industry.

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Takata airbag recall (2013-ongoing)
Toyota unintended acceleration recall (2009-2011)
Ford Pinto fuel tank recall (1978)
GM ignition switch recall (2014)