Assume that a producer increases the price of the product that she has been producing. She calculates the new revenue and sees that her revenue has increased after the increase in the price. In this case, which of the following is true about the elasticities of her product? Group of answer choices Price elasticity of supply must be inelastic at the original price. Price elasticity of supply must be elastic at the original price. Price elasticity of demand must be elastic at the original price. Price elasticity of demand must be inelastic at the original price