When the Banana Supplier Chiquita Begins to Improve Conditions for Its

When the banana supplier Chiquita begins to improve conditions for its workers by constructing schools for employees' families,this is an example of which of the pillars of corporate social responsibility?

A) human rights and employment standards in the workplace
B) environmental, health, and safety concerns
C) ethical sourcing and procurement
D) marketing and consumer issues
E) ethics training program