Correct answer: A. It displayed beauty grandeur and royal power
Explanation: The direct answer is A: marble and symmetry displayed beauty, grandeur and royal power. Architecture can communicate political authority. A ruler who commissions enormous, carefully planned buildings made with expensive materials shows that the state can collect resources, organize skilled workers and command great wealth. Marble gives buildings a refined and magnificent appearance, while symmetry—balanced shapes, repeated patterns and carefully arranged gardens or rooms—creates order and control. In Shah Jahan’s Mughal style, these features helped present the emperor’s court as wealthy, powerful and refined. Step by step: expensive marble suggests resources; balanced design suggests planning and order; monumental buildings attract public attention; together they strengthen the image of imperial authority. Option A is correct because it includes beauty, grandeur and royal power. Option B is wrong because architecture of this kind did not directly increase agriculture; farming was a separate economic activity. Option C is wrong because Shah Jahan’s architectural style did not create the Chola navy, which belongs to a different dynasty and purpose. Option D is wrong because buildings could not create the Nanda dynasty; the Nandas belonged to a much earlier historical period. The Taj Mahal is a well-known example of Shah Jahan’s architectural grandeur, although the idea also applies to other Mughal monuments. Remember: “marble shows splendour, symmetry shows order, monuments show power.” Do not reduce architecture to decoration alone; royal buildings also conveyed authority.