How do the following headlines concern self$-$interest and the social interest?

Walmart, the world's biggest store, is opening in China while KFC is expanding everywhere.

All bottles must be recycled.

A$.$ Walmart makes decisions in the social interest, but KFC thinks only of its self$-$interest. Recycling is in the social interest only if people behave in the social interest

B$.$ Walmart makes decisions in its self$-$interest, but KFC takes the social interest into account. Recycling regulations infringe freedom and are against both self$-$intere and the social interest.

C$.$ Walmart and KFC make decisions in their self$-$interest. Recycling is in the social interest, but people decide whether to make the effort to recycle in their self$-$inter

D$.$ Walmart and KFC make decisions in the social$-$interest. Recycling is in people's self$-$interest.