For the activities listed in Column 1, here are the corresponding actions from Column 2 that should undertake these activities within the Five Case Model framework:

Produce a contingency plan to follow in the event that the main teaching building is not ready before the start of the academic year.

Answer: D. Finalize risk management arrangements and plans. Contingency planning is a part of risk management.

Ensure that the consolidated Pittville Project Benefits Register is reviewed regularly.

Answer: C. Finalize benefits realisation arrangements and plans. Regular review of the Benefits Register ensures that benefits realization stays on track.

Take into account the milestones for delivery agreed with Piaffeco.

Answer: A. Finalize project management arrangements and plans. Milestones are a key part of project management.

Schedule a performance review of Piaffeco's delivery of the new campus following its implementation.

Answer: E. Finalize contract management arrangements and plans. Performance reviews are part of managing the contract.

Timetable monthly meetings between the Western Area Learning Improvement Programme Director and the Piaffeco Project Director. This is so they can update and share plans for the future usage and operation of the campus site.

Answer: A. Finalize project management arrangements and plans. Regular meetings between project directors are part of the ongoing project management process.

Update the reduced likelihood that the computer systems will not operate correctly due to the Piaffeco's recent acquisition of a company which specializes in computer systems.

Answer: D. Finalize risk management arrangements and plans. Adjusting the risk profile based on new information is a core component of risk management.

These answers align with the activities that are typically included in the different arrangements and plans according to the Five Case Model, which guides the development of business cases in a structured manner.