Ronald Reagan<span> addressed the nation and proposed that the United States develop new antimissile technology that would protect the United States from nuclear missile attacks. Reagan’s speech marked the beginning of what came to be known as the controversial Strategic Defense Initiative (SDI).</span>
I think it's D because "Causation" is <span>the action of causing something.</span>
No, American manufacturers have been sourcing products and parts from around the world for decades, and today it is nearly impossible (and not to mention extremely expensive) for companies to attempt to extract themselves from the global supply chain.
