Which of the following received the 'Best Domestic Water Purifier Award 2018-19' at the Water Digest Water Awards event held in March 2019?

• A. Blue Star Ltd.
• B. Kent RO Systems Pvt. Ltd.
• C. Livpure Pvt. Ltd.
• D. Hindustan Unilever Ltd.
• E. Havells Max Pvt. Ltd.