Explanation:

Statement 1 is correct. Mauryan art and architecture depicted the influence of Persians and Greeks. The Mauryan rulers, particularly Chandragupta Maurya was inspired by the Achaemenid places at Persepolis in Iran.

Statement 2 is incorrect. Mathura School of art established the tradition of transforming Buddhist symbols into human form not the Mauryan art and architecture. During the early period, Buddha is depicted symbolically through footprints, stupas, lotus throne, chakra, etc. The Mauryan school of Art and Architecture was inspired by the new religious and social movements in the Gangetic valley in the form of Buddhism and Jainism (Sramana/Shraman Tradition). Yaksha worship was very popular before and after the advent of Buddhism and it was assimilated in Buddhism and Jainism. However, construction of stupas and viharas (dwelling place of monks) became part of the Buddhist tradition. In this period, apart from stupas and viharas, stone pillars, rock cut caves and monumental figure sculptures were carved in several places.

Statement 3 is correct. The events from life of Buddha, the Jataka stories, etc. were depicted on the railings and torans of the stupas. Example: Sanchi Stupa. The main events associated with the Buddha’s life which were frequently depicted were events related to birth, renunciation, enlightment, dhammachakrapravartana (first sermon), and mahaparinirvana (death). Among Jataka stories that are frequently depicted are Chhadanta Jataka, Ruru Jataka, Sibi Jataka, Vidur Jataka, Vessantara Jataka and Shama Jataka.