Final answer:
The legal action for claims totalling £100,000 should be raised in the Court of Session, based on the British legal system, as it has no upper limit unlike the Sheriff Courts.
Step-by-step explanation:
The subject of the question falls under Law, particularly discussing where legal actions for different claims should be raised. In the context of the British legal system, the total amount of the pursuer's claims is £100,000 (£30,000 + £40,000 + £30,000), which indicates that the action must be raised in the Court of Session, since the Sheriff Courts have a limit of up to £100,000, but the Court of Session does not have a limit.
It's important to understand that there are different courts for handling different matters and monetary claims in different legal systems, and one should always adhere to these court jurisdictions when raising a legal claim.
Learn more about Court Jurisdiction