Option d is the correct answer. The features of a platform with 'Aryak-Pillars' are found in the stupas at Amaravati. Amaravati Stupa is a renowned Buddhist stupa located in Amaravathi, Palnadu district, Andhra Pradesh, India. The stupa dates back to around the 2nd century BCE to the 3rd century CE and is known for its intricate sculptural art and architecture. The platform of the Amaravati Stupa is made of brick and is surrounded by a railing. The railing is decorated with sculptures of Buddha, Bodhisattvas, and other Buddhist figures. The 'AryakPillars' are located on the corners of the platform. They are decorated with sculptures of lions, elephants, and other animals. The 'Aryak-Pillars' are a unique feature of the Amaravati Stupa. They are believed to have been used to support the umbrella that once covered the stupa. Important Tips Gandhara School of Art - Major Features: Geographical Presence: Gandhara sculptures discovered in Taxila ruins and other ancient sites in Afghanistan and Pakistan. Subject Matter: Primarily Buddha images and relief sculptures capturing scenes from Buddhist literature. Central Focus: Artistry centered on Lord Buddha and Bodhisattvas, deeply connected with Mahayana Buddhism, blending Indian ideas with distinct execution. The Bamiyan Buddha sculptures exemplify Gandhara style's brilliance Prominent Sites: Flourished in regions such as Taxila, Peshawar, Begram, and Bamiyan. Flourishing Period: Thrived from the 1st century BCE to the 4th century CE. Themes and Expressions: Buddhist narratives strongly reflected in Gandhara art, with depictions like Buddha's mother resembling an Athenian matron. A blend of Eastern and Western aesthetics is seen, such as the portrayal of a Buddhist scene with Apollo-like facial features.