Explanations:Delhi, the capital city of India, holds significant political, cultural, and economic importance. The first statement asserts that the Prime Minister lives in Delhi. This is true, as the Prime Minister's official residence is located in 7, Lok Kalyan Marg, which is in the heart of New Delhi. This residence is also known as the Prime Minister's House or the Prime Minister's Bungalow.
The second statement refers to Pietra Dura, an intricate art form where semi-precious stones are inlaid into marble. This technique is prominently featured in many historical monuments in Delhi, such as the Red Fort and Humayun's Tomb. Pietra Dura is a form of decorative art that adds a unique aesthetic to these structures, making them significant cultural landmarks. The use of this technique in Delhi's monuments highlights the city's rich cultural heritage and historical significance.
The third statement claims that Delhi is the leading commercial center of India. This is also true. Delhi is a major economic hub, with a diverse range of industries, including finance, real estate, and services. The city is home to numerous corporate headquarters, financial institutions, and commercial establishments, contributing significantly to India's economy. Its strategic location and well-developed infrastructure make it a key commercial center.
Therefore, all three statements are true, making option C the correct answer. Understanding the political, cultural, and economic roles of Delhi is crucial for comprehending its significance in the context of India. The Prime Minister's residence, the use of Pietra Dura in historical monuments, and Delhi's status as a leading commercial center all contribute to the city's multifaceted importance.