Answer: b.we should observe more people undertaking the activity
Step-by-step explanation:
The rational actor model follows the theory of rational choice which believes that the behavior of individual actors make up the social behavior on the society and that the individual actors are all making their own individual decisions.
It should be noted that when there's an increase in the benefits of an activity, this will lead to more people enjoying the benefit as there will be more players.
Therefore, the correct option is B