The question asks to identify the true statements about Kautilya.

Analyzing Kautilya Statements

• Statement (i): Kautilya served as the philosopher adviser to King Chandragupta Maurya. This statement is accurate. Kautilya, also known as Chanakya, was instrumental in the rise of Chandragupta Maurya and his establishment of the Mauryan Empire. He was a prominent scholar, philosopher, and strategist.
• Statement (ii): Kautilya proposed the saptanga theory of state. This statement is accurate. The Arthashastra, attributed to Kautilya, elaborates on the 'Saptanga' (seven limbs) theory, defining the essential components of a state.
• Statement (iii): Kautilya justified absolute powers of the Monarch. This statement is generally considered accurate within the context of the Arthashastra. While emphasizing the king's responsibility for his subjects' welfare, the text grants extensive authority to the monarch for effective administration and maintaining order, which is often interpreted as advocating for strong, near-absolute monarchical power.
• Statement (iv): Arthashastra is a combination of the science of wealth and the science of government. This statement is accurate. The Arthashastra covers a wide range of topics including economics, statecraft, law, military strategy, and administration, essentially dealing with the science of material well-being (artha) and governance.

Conclusion

Since all four statements (i), (ii), (iii), and (iv) are true regarding Kautilya and his work, the correct option includes all of them.