What Is the Significance of the House of Lord's Decision

What is the significance of the House of Lord's decision in Attorney-General v. Blake (2000) for the traditional rules governing the award of damages?

A) It allows a claim for the reliance interest in exceptional cases where the claimant has made a bad bargain (the costs of performance would exceed his expected gains) and the expectation interest is inadequate.
B) It allows a claim for non-pecuniary losses in exceptional cases where the provision of enjoyment, peace of mind, or alleviation of distress is a distinct and important obligation under the contract.
C) It allows a claim for the contract breaker's gains or savings from breach in exceptional cases where contract remedies are inadequate and the claimant has a 'legitimate interest' in preventing breach.
D) In contracts for the benefit of third parties, it allows the promisee to claim substantial damages for the loss performance of the obligations for which he has contracted.