A demand-pull business model is a customer-centric model that initiates activities after a customer's order has been placed

Which of the following statements is true about the Supremacy Clause of the U.S. Constitution?

A) A particular federal statute cannot exclusively regulate a specific area or activity. B) Any state or local law that "directly and substantially" conflicts with valid federal law is preempted. C) A particular federal statute can expressly provide for exclusive jurisdiction. D) Any state or local law that "directly and substantially" conflicts with valid federal law is held valid until such a time that the relevance of the federal law is tested and held in harmony with the cultural diversity in the state.

The major source of law that governs contracts is:

A) common law. B) legal dictionaries. C) civil law. D) restatement of law.