How do personnel in sales$-$oriented firms differ from personnel in market$-$oriented firms?

Select one:

O a$.$ Personnel in sales$-$orients firms focus on making what the market wants.

$$ b$.$ Personnel in sales$-$oriented firms determine the needs of both the final buyer and intermediaries.

C$.$ Personnel in sales$-$oriented firms tend to be inward looking.

$$ d$.$ Personnel in sales$-$oriented firms enhance individuals' and society's long$-$term best interests.