Which office is responsible for monitoring asylum cases and litigation?

The correct choice is the Office of Immigration Litigation because this office is specifically tasked with handling all legal matters regarding immigration, including asylum cases. It plays a crucial role in overseeing litigation involving asylum claims and ensures that cases are correctly represented in court. The office focuses on both defending and prosecuting immigration-related cases, which directly relates to monitoring not just the status of asylum applications but also the legal implications surrounding them.

In contrast, the Office of Field Operations primarily deals with the processing of immigration applications and enforcement activities at the operational level rather than legal oversight. The Office of Public Liaison is focused on community outreach and communication between the USCIS and external parties, rather than legal case management. Lastly, the Office of Refugee Services provides support and resources for refugees, but it does not specialize in monitoring asylum litigation or overseeing the legal aspects of such cases. Each of these offices has its specific role, but it is the Office of Immigration Litigation that is directly responsible for the legal monitoring of asylum cases.