Enabling auto-tagging in AdWords achieves what result?

Enabling auto-tagging in AdWords specifically adds AdWords tags to campaign URLs. This feature is designed to streamline the process of tracking AdWords campaigns within Google Analytics. When auto-tagging is enabled, Google Ads automatically appends a unique parameter, known as the GCLID (Google Click Identifier), to the destination URLs of your ads. This allows for more accurate tracking of campaign performance, including click data and user behavior on your website, directly in Google Analytics.

This automation eliminates the need for manual tagging of URLs and helps in ensuring that all necessary tracking information is included accurately, thereby facilitating better reporting and analysis of the effectiveness of advertising campaigns. The other options focus on different aspects of tagging and tracking that are not relevant in the context of auto-tagging specifically.