Jose rents office space for​ $20,000 per year. He uses the office to fill out tax returns for​ 1,000 clients per year. If the office rent increases to​ $25,000 per​ year, the marginal cost of filling out tax returns will A. ​increase, but we cannot determine the amount of the increase with the information given. B. increase by​ $5. C. not change. D. increase by​ $5,000.

Juanita and sam attend a beach party and notice that the local beach appears to have a great deal more trash washed up on shore than it did when they were young. the water doesn't appear nearly as clear, and there seems to be less evidence of small water creatures living in the shallows. an afternoon at the local library convinces them that one major cause is the new factory nearby. after some discussion, they decide their next step should be identifying the cause of the changes identifying the problem picketing the guilty factory lobbying their elected representatives to complain about the problem talking to a local environmental group about solutions