The correct option is D Mysore king and queen
Vani Vilasa Sagara, across the River Vedavathi, was built by the Mysore Maharajas pre-independence. The project was initiated by the regent Queen Maharani Kempa Nanjammani Vani Vilasa Sannidhana, who was a widow of Maharaja Chamaraaja Wadiyar. She is known for her exemplary social work.