Option a is the correct answer. Panch Mahal is a five-storied structure with 176 columns that served as a pleasure palace for the royal ladies at Fatehpur Sikri. It is also known as the "Wind-Catcher Tower" because of its open design that allows air circulation. Panch Mahal was built by Akbar in the 16th century as part of his new capital city at Fatehpur Sikri. It is said that Akbar was inspired by the multistoried buildings of Nalanda, a famous Buddhist university in ancient India. The Panch Mahal resembles a Buddhist monastery in its layout and structure, with each storey decreasing in size as it ascends. The topmost storey has a single domed pavilion, which offers a panoramic view of the city.