The correct option is 1 and 3 only.
Explanation
The Vakataka dynasty ruled in the Deccan and Central India (c. 3rd-5th century CE) and was contemporary with the Gupta Empire. The bronze images of the Buddha discovered at Phophnar (Maharashtra) represent an important phase in Indian metal sculpture, bridging northern and southern artistic traditions.
Statement 1 is Correct:
The Vakataka bronze images are contemporary with the Gupta period bronzes. The Vakataka rulers were politically and culturally linked to the Guptas (e.g., through the marriage of Prabhavatigupta, daughter of Chandragupta II), and their art flourished alongside the classical Gupta art of Northern India.
Statement 2 is Incorrect:
These images are not completely distinct; they explicitly show the influence of the Amaravati style (Andhra school). This influence is evident in the modeling of the physique and the flow of the drapery, representing a synthesis of the Satavahana/Amaravati traditions and the emerging Gupta idiom.
Statement 3 is Correct:
A distinguishing stylistic feature of the Phophnar bronzes is the arrangement of the monk's robe (sanghati). The right hand in abhaya mudra is held free from the drapery, meaning the garment does not cover the right hand or arm, a detail highlighted in standard art historical texts.
Key Takeaway:
Vakataka art, exemplified by the Phophnar bronzes and the paintings at Ajanta, represents a cultural synthesis of the Gupta classical style and the Amaravati school of the Deccan.