Who among the following were teachers of Gautama Buddha before his enlightenment ?1. Alara Kalama2. Udraka Ramputra3. Makkhali Gosala4. Nigantha NataputtaIndicate your answer from the codes given below.

• A. 1 and 4
• B. 4 and 2
• C. 2 and 3
• D. 1 and 2