The city government is considering two tax proposals; . A lump-sum tax of $300 on each producer of hamburgers. . A tax of $1 per burger, paid by producers of hamburgers. which of the following statements is true as a result of the lump-sum tax? Check all that apply. O Marginal cost will increase. O Average fixed cost will increase. O Average total cost will increase O Average variable cost will remain unchanged. Which of the following statements is true as a result of the per-burger tex? Check all that apply. O Average variable cost will increase. U) Average fixed cost will remain unchanged. O Average total cost will increase O Marginal cost will remain unchanged