Dale and Elin Sign a Contract That Intentionally Confers a Benefit

Multiple Choice

Dale and Elin sign a contract that intentionally confers a benefit on Federica.Federica's rights under the contract will vest

A) automatically.
B) if she manifests assent to the contract or materially al?ters her po?si?tion in detrimental reliance on it.
C) only if she manifests assent.
D) only if she materially alters her position in detrimental reliance.