Answer:
A. Knows / was past tense
In summary, it can be said that President J. F. Kennedy during the Duban Missile Crises was for a total of thirteen days confronted with the tough decision of how to manage a situation that nearly created a global nuclear crisis. This crisis took place in October 1962.
<h3>What is a Summary?</h3>
A summary is a concise reference highlighting the key points of an event, story, or literature.
What you should not include in your summary are points that are not relevant to the discourse.
Learn more about Summaries at:
brainly.com/question/25675468