Rudrama Devi was a monarch of the Kakatiya dynasty, making option 'C' the correct answer. She was one of the most prominent rulers of the Kakatiya dynasty, which was a South Indian dynasty that ruled over parts of present-day Telangana and Andhra Pradesh.

Rudrama Devi's Reign and Achievements:

1. Ascend to the Throne:
Rudrama Devi ascended to the throne in 1261 CE after the death of her father, King Ganapati Deva. As she did not have any male heir, she had to take on the role of a male ruler to maintain stability in the kingdom.

2. Coronation and Male Disguise:
To gain acceptance as a ruler, Rudrama Devi underwent a ceremonial coronation and adopted a male disguise. She was known as Rudradeva Maharaja and ruled as a male monarch. This strategy was successful in maintaining the support of the nobles and the people.

3. Military Campaigns and Expansion:
Under Rudrama Devi's rule, the Kakatiya dynasty witnessed significant military campaigns and territorial expansion. She successfully defended her kingdom against invasions from neighboring powers, including the Yadavas, the Cholas, and the Seuna Yadavas.

4. Fortifications and Defense:
Rudrama Devi was known for strengthening the defense of her kingdom. She built numerous forts and fortifications to protect her territories. The most famous of these is the Warangal Fort, which is now a UNESCO World Heritage site.

5. Patronage of Arts and Culture:
Rudrama Devi was a great patron of arts and culture. She herself was a skilled poet and wrote several poems in praise of the deities. She encouraged the development of literature, architecture, and sculpture in her kingdom.

6. Administration and Governance:
Rudrama Devi implemented several administrative reforms during her reign. She appointed capable officials and administrators to ensure efficient governance. She also introduced land reforms and implemented policies to improve the welfare of her subjects.

7. Legacy:
Rudrama Devi's reign is considered a significant period in the history of the Kakatiya dynasty. Her successful rule as a female monarch in a patriarchal society is seen as a symbol of women's empowerment and leadership.

In conclusion, Rudrama Devi was a monarch of the Kakatiya dynasty who ruled with great skill and success. Her military campaigns, fortifications, patronage of arts, and administrative reforms contributed to her kingdom's prosperity and stability. She remains an inspiration as a female ruler in Indian history.