The correct option is Dasaratha Jataka.
Explanation
Jataka tales, which narrate the previous births of the Buddha, were a primary subject matter for early Buddhist narrative art. These stories were extensively sculpted on the railings (vedikas) and gateways (toranas) of stupas during the Post-Mauryan period, particularly at sites like Bharhut, Sanchi, and Amaravati, to educate the laity.
Analysis of Options:
- Dasaratha Jataka Dasaratha Jataka: This Jataka narrates a version of the Ramayana story where the Bodhisattva is born as Rama. While it is an important literary text within the Pali canon, it is not frequently depicted in the surviving visual narratives of early Buddhist art (such as Bharhut or Sanchi) compared to the other options.
- Chhadanta Jataka Chhadanta Jataka: This story concerns the Bodhisattva born as a six-tusked elephant. It is one of the most popular themes, appearing prominently at Bharhut, on the architraves of Sanchi Stupa I, and in early paintings at Ajanta (Cave 10).
- Ruru Jataka Ruru Jataka: This story features the Bodhisattva as a golden deer who rescues a drowning man. It is a well-known relief found on the Bharhut stupa railing medallions.
- Sibi Jataka Sibi Jataka: This tale depicts King Sibi offering his own flesh to save a pigeon (or giving his eyes in other versions). It is a frequent subject in Buddhist art, appearing in Gandhara, Amaravati, and later Ajanta murals.
Key Takeaway:
The Chhadanta, Ruru, Vessantara, and Sibi Jatakas are among the most recurrent themes in early Buddhist relief sculpture, whereas the Dasaratha Jataka, despite its literary existence, is rarely found in early visual depictions.