f Happy Trails Airlines loses money by running flights with only a few passengers on board (well below seating capacity), but they still run these flights, it must be because

Select one:

a.the marginal product of running the flight is still positive.

b.they can afford to do so.

c.marginal cost exceeds marginal revenue on those flights.

d.marginal revenue exceeds marginal cost on those flights.

e.none of the above.