The correct answer is: All five are correct.
Rationale: These are all potential ethical issues. Materials used impacts on product safety and eco-friendliness (eg for recycling). Quality is a safety and customer satisfaction issues. Advertising poses issues of truth and non-manipulation. You may have hesitated over supplier labour practices, but this is a key area of ethical sourcing. It can cause significant damage to corporate reputations. Packaging raises issues of safety/perishability, eco-friendliness and truthful product labelling.
