Answer:
Option d is correct
Increase in income $40,000
Explanation:
$
Sales revenue from Order = (140× 1,000)= 140,000
Variable cost of order ( 100× 1,000) = (100,000)
Increase in income 40,000
Note that the fixed costs of $480,000 was not include in the analysis. This is is so because it would be still incurred whether the order is accepted or not. Hence, it is irrelevant for this decision.