Rangle contracts with Siena to buy a certain horse for her. Rangle makes a deal with Timberline Stables, the owner of the horse, and makes a down payment. Siena fails to pay the rest of the price. Timberline sues Rangle for breach of contract. His right to hold Siena liable for any damages that he has to pay is the right of​ a-avoidance. b-cooperation. c-indemnification. d-reimbursement.

Answer: indemnification

Explanation: The indemnification clause is essentially the other party's obligation to compensate your damages if they do something that hurts you or allows you to be sued by a third party.

Indemnifying and keeping innocent means the same thing - making it whole after a defeat. Usually, but not always, the obligation to indemnify is reconcilable with the contractual obligation to "keep harmless" or "save harmless.

Hence from the above we can conclude that Rangle has right of indemnification.