Send Logs, once enabled through Send Logging, provide a unified, cross-channel record of send activity that spans email, SMS, and push notifications, giving the consultant a single, queryable structure to build reporting that covers all three channels together rather than needing to separately reconcile disparate channel-specific data sources. This cross-channel breadth is precisely what the requirement calls for, since the scenario explicitly asks about send data spanning SMS, Push, and email together, not just one channel in isolation. The Sent Data View (B) is scoped specifically to email send activity and does not natively capture SMS or Push send events in the same structure, making it insufficient on its own for a unified, cross-channel query. Tracking Extracts (C) similarly focus primarily on email delivery and engagement tracking data and are not the standard mechanism for consolidated multi-channel (SMS/Push/email) send reporting. Contact History (D) is not a defined, standard Marketing Cloud reporting object for this purpose in this context. When a scenario explicitly spans multiple messaging channels and asks for a single queryable send-data source, Send Logs is the correct, unifying answer among the choices presented. Reference: Send Logging, Cross-Channel Reporting.