Which of the following were common to both Buddhism and Jainism? I. Avoidance of extremities of penance and enjoyment. II. Indifference to the authority of the Vedas III. Denial of efficacy of rituals IV. Non-injury to animal life Select the correct answer using the codes given below:

1. (a)I, II, III and IV
2. (b)II, III and IV
3. (c)I, III and IV
4. (d)I and II