Who wrote the famous book 'Arthashastra'?

The correct answer is Option (2) → Kautilya

The Arthashastra, an ancient Sanskrit treatise on statecraft, economy and administration, is credited to Kautilya, also known as Chanakya or Vishnugupta. He was the adviser of Chandragupta Maurya, the founder of the Maurya Empire, in the 4th century BCE.