Under contract law, what is the general rule about assignment and delegation of rights and duties?

Under contract law, what is the general rule about assignment and delegation of rights and duties?

• A. Rights under a contract can always be assigned and duties delegated without restriction.
• B. Rights under a contract may generally be assigned and duties delegated unless prohibited by the contract or would materially alter rights or obligations; assignment may be barred by contract or law, and novation may discharge the original duty.
• C. Assignment and delegation require court approval.
• D. Novation always discharges the original duty.

Answer: (B)