Correct option is A
The world's largest rooftop solar power plant, with a capacity of 11.5 MW, was inaugurated on May 17, 2016, in Beas, near Amritsar, Punjab. This solar power project spans over 42 acres at the Dera Baba Jaimal Singh campus and was constructed at a cost of approximately Rs 139 crore. The project was executed by Tata Power Solar and aims to generate clean energy sufficient to power around 8,000 homes. The environmental benefits include reducing 400,000 tonnes of carbon dioxide over 25 years, which is equivalent to planting 200,000 trees. This project set a new benchmark in the solar energy sector in India and globally.