Which suggestion helps minimize the impact of Marketing Cloud Connect on daily API limits?

Choosing to upgrade the Marketing Cloud account to a Connected App is advantageous in minimizing the impact of Marketing Cloud Connect on daily API limits because a Connected App can improve the way API calls are managed and facilitate better overall performance. This upgrade typically provides a more efficient connectivity method that often allows for higher limits or better resource use, ultimately reducing the strain on available API calls.

Additionally, a Connected App can support more seamless integration between Salesforce and Marketing Cloud, which can streamline operations and reduce the frequency of API requests, thereby preserving the API usage allowance.

Filtering data before importing, turning off link details tracking, or using only manual sends could help manage API usage in specific contexts but may not address the fundamental limitations related to the structure and capabilities of the Marketing Cloud instance itself in the same comprehensive way that upgrading to a Connected App does.