Answer:
c) scarcity
Step-by-step explanation:
Scarcity is a state in which resources are relatively less then the requirement, and thus an individual aims to best utilize those limited resources.
In the given instance,
There is a large group of stranded passengers, who are standing next to a disabled bus, seats available are only three.
Since there is limited number of seats with relatively high demand the problem here is of about an issue relating to
c) scarcity