Corporate social responsibility (csr) is:

a. imposed by the law.
b. involves a commitment to self-regulation by businesses.
c. does not relate to the intent of the law.

b. involves a commitment to self-regulation by businesses.

Explanation:

The corporate social responsibility refers to corporate responsibility towards society in order to accomplish its goals, targets, and objectives.  

Without the permission of the society, the organization could not work for a longer time as it would harm the social well being and in the end the organization needs to shut its activities.  

In another word, it is a commitment to the society to take care of the society as a whole while conducting its business activities so, it would be a self-regulation commitment by business