The Inspect and Adapt (I&A) event is a crucial part of the Program Increment (PI) cycle in SAFe, held at the end of every PI. It provides a structured opportunity for the Agile Release Train (ART) to reflect, assess results, and drive relentless improvement.

According to SAFe, the I&A event consists of three distinct parts:

PI System Demo -- A combined demonstration of all teams' completed features during the PI to show the integrated solution's current state.

Quantitative and Qualitative Measurement -- Teams review performance metrics and gather stakeholder feedback to assess progress toward business objectives.

Problem-Solving Workshop -- The ART collectively identifies systemic issues and applies root cause analysis techniques to create actionable improvement items.

From SAFe guidance:

''The Inspect and Adapt event consists of a PI System Demo, quantitative and qualitative measurement, and a problem-solving workshop.''

Thus, the correct answer is C. PI System Demo, qualitative and quantitative measurement, and problem-solving workshop.