Answer:
Option D. The court will uphold the original contract and Mountbatten will lose.
Step-by-step explanation:
The reason is that the service consideration agreed will remain the same because the same level of services is provided from the tax firm. This means that the tax firm has not performed any special or excessive to the agreed level, hence the Sommerset Inc. is not liable to pay more than the agreed. On this basis, court will be uphold the original contract formed between these two parties and as a result Mountbatten will lose.