MUMBAI, Sept 10 (Reuters) - Sun Pharmaceutical Industries Ltd, India's largest drugmaker by sales, said it is looking to divest a manufacturing plant in Ireland as it tries to control costs that have spiralled since it bought Ranbaxy Laboratories Ltd.
Take context from the input text and decide on the accurate relationship between 'Sun Pharmaceutical' and 'Ranbaxy Laboratories' from the options provided.
Options: subsidiary, parent organization, operator, owned by