Jasmine Enters into a Contract to Provide Limousine Services to Erin

Jasmine enters into a contract to provide limousine services to Erin. Later, Jasmine tells Erin that she was acting as an agent on behalf of Big White Limousine Services Ltd. Which of the following is TRUE?

A) Erin can enforce the contract against Jasmine alone.
B) Erin can enforce the contract against Jasmine or Big White, whichever she chooses.
C) Erin cannot enforce the contract.
D) Erin can enforce the contract against Big White alone.
E) none of the above