Final answer:
Phoning your elected official is not considered group-level political participation because it is an individual action, unlike other options that involve collective efforts.
Step-by-step explanation:
The question seeks to identify which activity does not count as group-level political participation. Group-level political participation involves collective actions aimed at influencing political processes or outcomes. In the context of the given options, phoning your elected official does not constitute group-level participation since it is an individual action. Unlike being part of a political party, taking part in a protest, or working for a political campaign, which involves collaborative efforts, phoning is a solitary act and does not involve collective participation.