Correct Answer: (c) Vishnugupta
Solution:Sage Chanak gave his son the name Chanakya. The ancient Arthashastra has been traditionally attributed to Chanakya by a number of scholars. Arthashastra identifies its author by the name of Kautilya, except for one verse that refers to him by the name of Vishnugupta . In the question, the name of Chanakya in childhood is asked, so, from the above-options Vishnugupta is found to be the most appropriate answer. According to researcher Trobmen, Chanakya or Kautilya is presumably the name of the author's gotra (Clan).