Final answer:
The sexual assault victim reporting option that instigates an official investigation and provides comprehensive support and resources to the victim is Unrestricted Reporting (Option C).
Step-by-step explanation:
The type of sexual assault victim reporting option that triggers an official investigation of the allegations, command notification, Victim and Witness Assistance Program (VWAP) rights, additional command protective actions, and allows eligible sexual assault victims access to medical treatment, legal services, and counseling is C) Unrestricted Reporting. Unlike other reporting options, Unrestricted Reporting is designed to offer a full suite of support and resources while also mobilizing an official investigation into the allegations. When a victim chooses Unrestricted Reporting, they are setting in motion the processes necessary for holding the perpetrator accountable and securing their own access to vital services and support.