Who among the following teachers were visited by Siddhartha Gautama

Q. Who among the following teachers were visited by Siddhartha Gautama in the quest of knowledge before his enlightment?

1. Alara Kalama 2. Udraka Ramaputra

3. Makkhali Gosala 4. Nigantha Nataputta

Indicate your answer from the codes given below:

Codes:

(a) 1 and 4

(b) 4 and 2

(c) 2 and 3

(d) 1 and 2

Ans: (d) 1 and 2