Final answer:
Phoning your elected official is not a group-level form of political participation, as it is an individual action, unlike being part of a political party. The correct answer is option c).
Step-by-step explanation:
The question at hand is seeking to identify which option cannot be considered a group-level form of political participation. Political participation at the group level involves activities that are typically conducted by or with the involvement of multiple individuals with the intent to influence political decisions or policy.
This form of participation often includes collective efforts and public demonstrations of political engagement. Among the options provided, phoning your elected official does not align with group-level political participation as it is an individual action.
On the other hand, being part of a political party, taking part in a protest, and working for a political campaign all involve collective action and therefore fit the criteria for group-level political participation. Therefore, the answer is c) Phoning your elected official, as this is typically an individual activity rather than a group one.