I believe that the best answer among the choices provided by the question is <span>B-in the future days, which we seek to make secure, we look forward to a world founded upon four essential human freedoms.</span>
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Explanation:
The paying capacity and the willingness of the buyer at a specific price is <em><u>demand</u></em>, while the quantity that is offered by the producers of those goods to its customers or consumers at a specific price is <em><u>supply</u></em>.