As events like the Vietnam War, war protests, energy crises, and the collapse of Penn Square Bank demonstrate, the 1960s and 1970s were a time of __________ for many Oklahomans.

The Vietnam War, protests, energy crises, and a bank collapse are all examples of disruptive and difficult events. Together, they show that many Oklahomans experienced turmoil during the 1960s and 1970s. “Tranquility” and “inactivity” suggest calm or lack of change, which does not fit these events.

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