which one is right

Answer the question on the basis of the following cost data. Output Average Fixed Cost Average Variable Cost 1 $50. 00 $100. 00 25. 00 80. 00 16. 67 66. 67 12. 50 65. 00 10. 00 68. 00 8. 37 73. 33 -] 7. 14 80. 00 6. 25 87. 50 The marginal cost of the sixth unit of output is Multiple Choice O $440.00. O $100.00. O $490.00. O $8.37