this is a case study about chocolate supply chain .. there are four questions an

this is a case study about chocolate supply chain .. there are four questions answer them please, and add introduction , conclusion and references
I want 3-4 pages , the the last one for references
the Questions :
1. What are the challenges of the chocolate global value chain?
2. Are third-party certifications and in-house certifications to solve sustainability issues in this chain equivalent? In what terms (think about benefits, risks, and limits)?
3. From the perspective of your assigned stakeholder group, what strategies to increase the impact of sustainability initiatives should be emphasized?
4. What are the pitfalls of private governance?