Answer:
a. charged any ticket price above $0 for the four remaining seats
Explanation:
Marginal cost refers to the extra expense incurred by a business in producing as an additional unit. For a business to be profitable, its marginal cost should be equal or greater than the marginal revenue.
The Get-There-Safe Bus company has a marginal cost of zero or an additional passenger. It means the cost associated with selling one more passenger ticket is zero. Â For the bus company to be profitable, it must sell an extra ticket at a price greater than the marginal cost. Therefore, a price greater than zero will result in profit.