One of your portfolio team members is confused on the reason behind using the three...

He is right, processes can be skipped if you want to do the other ones

The processes are similar and can be skipped. The reason they exist in the standard is to cover the define, align, and monitor and control process groups

The processes are not similar and they are interrelated, they are continuously executed throughout the portfolio life cycle

The processes are part of the standard for portfolio management and should not be skipped