Correct Answer - Option 4 : once
There are four Vedas- the Rigveda, Samaveda, Yajurveda and Atharvaveda.
- The oldest Veda is the Rigveda, composed about 3500 years ago.
- The Rigveda includes more than a thousand hymns, called Sukta or “well-said”.
- These hymns are in praise of various gods and goddesses.
- Three gods are especially important: Agni, the god of fire; Indra, a warrior god; and Soma, a plant from which a special drink was prepared.
The rivers Ganga, Yamuna and Saraswati had great prominence in Vedas.
- Ganga and Yamuna are mentioned together for the first time in Rig Veda.
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The Yamuna is mentioned three times and Ganga is mentioned once in Rig Veda.
Thus, it is clear that option 4 is the correct answer.