When a firm advertises that it only uses recycled paper products it is meeting its legal obligations meeting its social screening requirements being socially responsive adopting green management?

I believe the answer is: Socially responsible
Socially responsible companies are the type of company that not only focus on profitability but also contributed things for the benefit of the society where they operated.
To be Socially responsible, companies could do several things such as: taking care of the environment, run an  honest practice, contribute to charities, etc.