The correct answer is option 'B', Rama Raya.

Battle of Rakshasi-Tangadi:
The Battle of Rakshasi-Tangadi took place in 1565 AD. It was a significant battle fought between the Vijayanagara Empire and the combined forces of the Deccan Sultanates. The Vijayanagara Empire, under the leadership of Rama Raya, faced a strong coalition comprising the Sultanates of Bijapur, Ahmadnagar, Golconda, and Bidar.

Rama Raya:
Rama Raya was a prominent ruler and military leader of the Vijayanagara Empire during the 16th century. He belonged to the Aravidu dynasty and served as the regent for his nephew, Sadasiva Raya. Rama Raya was known for his strategic skills and played a crucial role in the empire's military campaigns.

Importance of the Battle:
The Battle of Rakshasi-Tangadi was a turning point in the history of the Vijayanagara Empire. It marked the decline and eventual downfall of the empire. The combined Sultanates, led by the Bijapur Sultanate, launched a massive attack on Vijayanagara, seeking to overthrow its dominance in the region.

Outcome of the Battle:
Despite the valiant efforts of Rama Raya and the Vijayanagara army, they were overwhelmed by the superior forces of the Sultanates. The Vijayanagara Empire suffered a devastating defeat in the battle, and Rama Raya was captured by the enemy. This defeat resulted in the plundering and destruction of the prosperous Vijayanagara city, Hampi, by the victorious Sultanates.

Consequences:
Following the Battle of Rakshasi-Tangadi, the Vijayanagara Empire lost its political and military supremacy in the region. The victorious Sultanates divided the empire's territories among themselves and established their own rule. The downfall of Vijayanagara marked the end of an era and the emergence of new powers in the Deccan region.

Conclusion:
The Battle of Rakshasi-Tangadi was a crucial event in the history of the Vijayanagara Empire. Led by Rama Raya, the Vijayanagara army faced a powerful coalition of Deccan Sultanates and suffered a resounding defeat. This defeat ultimately led to the downfall of the empire and the emergence of new regional powers in the Deccan.