Which of the following best defines "activism"?

The term "activism" fundamentally refers to the vigorous pursuit of political or social change through direct action. Therefore, the best definition among the options provided is the one that describes a person devoted to the active life. This active engagement typically manifests in efforts aimed at promoting or preventing social, economic, or political change, indicating a proactive stance rather than a passive one.

Being devoted to the active life implies actively involving oneself in causes, often undertaking campaigns, demonstrations, or other forms of advocacy. This contrasts sharply with the other options, which suggest passivity or an indifference to political involvement, neither of which align with the core notion of activism.