Answer:
b. are willing to buy at various prices.
Step-by-step explanation:
The demand of good in economics is clearly the goods that people want and are ready to pay different prices for such goods.
The goods are valuable to different people depending upon their different needs and shall be of different satisfaction to different people.
People will pay for the good according to the capacity and need.
The demand of goods does not mean the number of goods to be bought when can be received free of cost. This is because that might include the un-necessary wants of a person, but not the real demand.