Which of the following states the law of supply and demand? A. All things being equal, the higher the price of a good or service, the lower the demand will be for that good or service B. All things being equal, the lower the price of a good or service, the lower the demand will be for that good or service C. All things being equal, a provider will be willing to supply more goods or services for a lower price if a lower quantity is sold D. All things being equal, a provider will be willing to supply fewer goods or services for a lower price if a lower quantity is sold