Which quotation is punctuated correctly? in all his years, dr. connors "never understood the power of creative thought". dr. martin luther king jr. was a "beacon of hope in an otherwise bleak time". as the famous musician said "the harmonica is the instrument of poets." according to president roosevelt, "the world was at the brink of war."

According to President Roosevelt, "The world was at the brink of war."

Explanation:

Periods and commas at the end of a quotation always go before the closing quotation mark (options 1 and 2). Capitalizing "was" after "Jr." is a mistake, because the period after Jr. does not finish the sentence (option 2). When quoting full sentences, the quotation should start with a capital letter (option 3) and adverbial clauses introducing the quotation are set off with a comma (option 3).

According to President Roosevelt, "The world was at the brink of war."

Explanation:

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