Suppose a perfectly competitive increasing-cost industry is in long-run equilibrium when market demand increases. Which of the following statements is true in this case? a) New firms will enter the industry in the short num. b) Some resource suppliers to the industry will earn higher income. C) The new long-run equilibrium price will be lower than the original equilibrium price. d) Existing firms will earn economic profits in the new long-run equilibrium. e) Existing furms will decrease output in the short run