What are examples of the US government indirectly impacting the economy without being in direct competition with private business?

Before a sport manager is liable for negligence, the plaintiff must show that the sport manager owed the plaintiff a duty of care. a legal duty of care arises from which of the following origins? a: from a relationship inherent in a particular situation b: from a voluntary assumption of the duty of care c: from a duty mandated by a law d: all of the above