Help us choose the next section to cover for the TnT commentary

As we are drawing curtains on the European preference chapter of the proposed Public Procurement Act, we have a poll on Linkedin running for the next week to help us decide which section should fall under our legal scalpel.
I think we chose some meaty options to keep us entertained between mid-November and say Christmas or early January. Our plan from the third week of November onwards is to do two posts a week as I will finally be clear of all my teaching this semester. Anyway, here are the options:
- Articles 21-29 – Part II Title II Economic operators (Chapter 1 - General provisions, and Chapter 2 - Exclusion grounds and selection criteria)
- Articles 50-69 – Part III Title II Strategic design and execution of public procurement
(Chapter 1 - Green public procurement, Chapter 2 - Socially responsible public procurement, Chapter 3 - Public procurement of innovation and Chapter 4 - Security and resilience), - Articles 88-103 – Part III Title III Horizontal provisions (Chapter 2 - Subject-matter of the contract and means of proof, and Chapter 3 - Conduct of the procedure)
(We chose these ones as they are likely to survive in some way or form any attempt to butcher the Act and make it into a Directive or a mixed skinny Regulation + Directive.)