Under Lord Wellesley's Subsidiary Alliance system, what was the restriction placed on the allied Indian ruler regarding foreign relations?

Options:

• A: The ruler could maintain diplomatic relations only with neighboring states.
• B: The ruler could declare war on any state but had to share the spoils with the British.
• C: The ruler could not employ any European or negotiate with any other power without British consent.
• D: The ruler was free to sign treaties with other European powers except France.

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