[Solved] Four of the following are characteristics of an adenovirus. Which one is the exception? A) is a naked virus B) is the most common cause of the common cold C) has a spiked protein coat D) infects animals E) has a lipid envelope Average Revenue: The amount of income generated per unit of sale or average price at which a product is sold. Demand Curve: An illustrated chart depicting the correlation between a good or service's price and the amount consumers want to buy during a certain period. Marginal Revenue: The additional income that a firm receives from selling one more unit of a good or service. Average Revenue: The average amount of money received by a firm per unit of output sold, calculated by dividing the total revenue by the number of units sold.