Multistate Bar Examination Practice Question

The correct answer is based on the principle of reliance, specifically promissory estoppel. The friend's reliance on the promise led him to suffer a detriment by quitting his part-time job. Promissory estoppel applies where reliance is foreseeable and enforcement is necessary to prevent injustice. The option involving providing a benefit is incorrect because restitution or benefit conferred typically involves cases where a measurable benefit is given to the promisor, which did not occur here. The option stating a promise as part of an agreement is incorrect because no actual agreement was reached between the parties. The option about prior consideration is wrong because consideration must be a present or future act, and past actions do not satisfy this requirement.