Final answer:
The holiday that passes is Diwali, a significant Hindu festival, while Rukmani and Nathan strive in the city. The rulers of the Delhi Sultanate followed the Islamic religious tradition.
Step-by-step explanation:
The holiday that passes while Rukmani and Nathan are trying to earn a living in the city is Diwali. Diwali, also known as the Festival of Lights, is an important Hindu festival that symbolizes the victory of light over darkness and good over evil. This information provides context to the scenario described, although it does not directly respond to the provided reference question regarding the religious tradition of the rulers of the Delhi Sultanate.
To answer the reference question: The rulers of the Delhi Sultanate in India were followers of the Islamic religious tradition. The Delhi Sultanate was a Muslim kingdom based in Delhi that stretched over large parts of the Indian subcontinent for over 300 years. There fore the correct answer is (a) Diwali.