Option b is the correct answer. The standing statue of Gautama Buddha was built in the Kushana period, which lasted from the 1st to the 3rd centuries CE. It is located in Sarnath, Varanasi, Uttar Pradesh. The standing statue of Gautama Buddha is one of the most famous examples of Kushana Buddhist art. It is a large sculpture that is made of sandstone. The statue is depicted as the Buddha standing with his right hand raised in the Abhaya Mudra, which is a gesture of fearlessness. The statue is thought to have been originally located in a stupa, or Buddhist shrine.