Answer: e)Social forces
Explanation: Social forces are the group of people that aims towards the social change or action, influence, interaction.These forces work by pressurizing , influencing, awarding, interacting others to contribute in the social activity.
They don't have a pre-written rules and regulation but work on the basis of beliefs and motive which should present in the relation of groups and associations.
Other options are incorrect because they don't work for the social society have personal aims,economic aims,political topics and legal regulations.Thus, the correct option is option (e).