Explanation
- A
Nagarjunikonda
Nagarjunikonda claims the presence of architectural features like apsidal temples and large monastic complexes, but it is not renowned for the specific structural motif of a platform with 'Aryak-Pillars'.
- B
Ghantshal
Ghantshal claims association with significant Buddhist sculptural remains in Andhra Pradesh, yet the defining characteristics of platforms featuring 'Aryak-Pillars' are absent here.
- C
Amaravati
Amaravati claims the prominent architectural feature of a massive brick stupa adorned with limestone reliefs, including the distinctive projection of platforms embellished with four 'Aryak-Pillars' (votive pillars) facing the four cardinal directions, making this option the definitive key.
- D
Bodhgaya
Bodhgaya claims supreme importance as the site of the Buddha's enlightenment marked by the Mahabodhi Temple and various sacred shrines, but it lacks the distinct structural convention of stupas with 'Aryak-Pillars'.
Summary. Official key is (c) Amaravati. The distinctive architectural trait of projecting platforms adorned with 'Aryak-Pillars' is a hallmark of the Satavahana-period stupas in the Krishna-Godavari lower valley, particularly at Amaravati. Nagarjunikonda and Ghantshal share regional artistic traits but do not feature this exact configuration. Bodhgaya represents a temple complex rather than the structural stupa typology associated with Aryak pillars. Therefore, option (c) is the correct choice.