The strategic defense effort, which Regan proposed, put pressure on the Soviets to develop similar technologies. Option A is correct.
Ronald Wilson Reganth was the 40th U.s. president of America. He was an American politician.
He previously worked as the president of California before retiring to run for president.
Ronald Wilson Regan was a great strategist thinker during the battle.
He utilized a defensive military program to force the Soviets to start developing the similar technologies.
Therefore, option A is correct.
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