Explanations:The Red Fort, also known as Lal Qila, is a historical fort in the city of Delhi, India. It was built by the Mughal Emperor Shah Jahan in the 17th century and is a UNESCO World Heritage Site. The fort is made of red sandstone, which gives it its distinctive color and name. The Red Fort is not located in Mumbai, as Rani's statement suggests. Mumbai is a different city in India, and it does not have a Red Fort made of sandstone.
Mount Rushmore is a massive sculpture carved into the granite face of Mount Rushmore in the Black Hills region of South Dakota, USA. The sculpture features the 60-foot (18-meter) heads of four United States presidents: George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln. The rock type of Mount Rushmore is granite, not gneiss, as Rahul's statement suggests. Gneiss is a metamorphic rock, while granite is an igneous rock, and the distinction between these rock types is important in geology.
Both statements in the question are incorrect. The Red Fort is located in Delhi and is made of red sandstone, while Mount Rushmore is carved into granite. Understanding the correct locations and materials of these landmarks is crucial for answering questions about them accurately. This question tests the student's knowledge of the specific details related to these historical and geological landmarks.