Comprehensive and Detailed Explanation:

The correct answer is C — Data Extract with the Tracking Extract type > File Transfer from Safehouse > File Transfer unzip > Import File.

Tracking Extract Activity pulls detailed email event data, including 'Not Sent' events, into a compressed file (.zip).

You need a File Transfer Activity to move the file from the Safehouse and unzip it.

After unzipping, Import Activity loads the extracted data into a Data Extension where queries can run.

❌ Why others are wrong:

A and B: Data Extension Extract type is for DE records, not tracking events like Not Sent.

D: Data Factory Utility is not part of the standard Automation Studio activities for these operations.

Exact Extract from Salesforce Official Documentation:

Salesforce Help — Tracking Extract and Automation Studio:

"Use Tracking Extract to retrieve event-level data, including Not Sent events, then use a File Transfer Activity to unzip and import the extracted data for analysis or reporting."

(Source: https://help.salesforce.com/s/articleView?id=sf.mc_as_tracking_extract_activity.htm )

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