The correct answer is: Both (A) and (B).
Saraswati and Drishadvati are two ancient and sacred rivers of Haryana. Saraswati is believed to have dried up around 1900 BC, while Drishadvati is a tributary of the Yamuna. Both rivers are mentioned in the Rig Veda, one of the oldest Hindu scriptures.
The Saraswati is said to have been a mighty river that flowed through the Punjab and Haryana regions. It is believed to have been the most important river in the Vedic period, and many hymns in the Rig Veda are dedicated to it. The Saraswati is also mentioned in the Mahabharata and the Ramayana.
The Drishadvati is said to have been a tributary of the Saraswati. It is believed to have flowed through the Kurukshetra region, where the Mahabharata war was fought. The Drishadvati is also mentioned in the Mahabharata.
Both the Saraswati and the Drishadvati are considered to be sacred rivers by Hindus. Pilgrims often visit the sites where these rivers are believed to have flowed.