Options (a), (b) and (c) are correct about Rig Vedic period. Vedic Aryans worshipped natural forces like fire, wind, rain and thunder. There were no temples and no idol worship during the early Vedic period. Hence, option (d) is the correct answer i.e. statement(d) is not true. The Rig-Veda is the largest and most important text of the Vedic collection; it includes 1028 hymns and it is divided intoten books called Mandalas. More than half the hymns invoke justthree top-rated gods of the moment: Indra (250 hymns), Agni(200 hymns), and Soma (100 hymns)