Which of the following was not one of the popular beliefs and customs prevalent during the Sangam Age?
(a) There was much faith in omens and astrology
(b) A woman with dishevelled hair was a bad omen
(c) Rites were performed to avert the mischief of demons
(d) Eclipses were believed to be the result of Rahu and Ketu eating up the sun and the moon
