Which of the following statements best describes the function of the break-even point?a) It signifies the point at which the demand for a product is less than the total supply available.b) It signifies the point at which the demand for a product is less than the total supply available.c) It signifies the additional cost of manufacturing and marketing one additional unit of a product.d) It signifies the quantity at which the cost of a product equals the revenue generated from the product.e) It signifies the point at which a percentage decrease in the cost of product will result in a percentage increase in the demand for the product.