Which of the following is an example of green marketing?

The example of green marketing is represented by a brochure printed on 100% post-consumer recycled paper. This choice embodies the principles of green marketing because it demonstrates a commitment to environmental sustainability through the use of recycled materials in the production of promotional materials. By opting for post-consumer recycled paper, the brochure not only reduces waste but also minimizes the demand for new raw materials, thereby contributing positively to environmental conservation efforts.

Other options do not align as closely with green marketing principles. For instance, while a promotional video highlighting factory practices might provide valuable transparency, it does not inherently showcase an environmentally friendly aspect unless it specifically focuses on sustainable methods or materials. A discount offer and a celebrity endorsement are marketing strategies that may aim to increase sales or brand visibility but do not clearly convey any commitment to sustainability or eco-friendly practices.