Answer: Social entrepreneurship
Explanation: It is a new concept, usually followed by the startup companies. Under this style of entrepreneurship, the management tries to tackle the environmental issues by bringing up funds or providing any other kind of help.
In the given case, the company promises to plant trees on its every sale. Thus, the company is focusing not only on profits but also the problems that are caused due to over destruction of trees.
Hence from the above we can conclude that the correct option is A.