Read the following passage and answer the questions that follows.
The history of eastern India during the early medieval period is marked by the emergence and decline of various dynasties, each contributing to the region's socio-political and cultural landscape. Among these, the Palas and Senas of Bengal, the Varmans of Kamarupa, and the Bhaumakaras and Somavamsis of Odisha are notable.

The Palas, who came into power in the 8th century, played a pivotal role in establishing Buddhism in the region. Their reign is distinguished by the establishment of universities like Vikramashila and Nalanda, which became centers of learning under their patronage. The dynasty saw its decline by the 12th century, giving way to the Senas, who were staunch Hindus. The Senas reinstated Hinduism and made significant contributions to art and architecture, evident from the terracotta temples of Bengal.

Kamarupa, known today as Assam, was ruled by the Varmans until the early medieval period. This dynasty was instrumental in expanding the region through military conquests and fostering trade. The Varmans are also remembered for their contributions to the Assamese culture and the promotion of Hinduism.

In Odisha, the Bhaumakaras emerged in the 8th century, famed for their patronage of Buddhism. They were succeeded by the Somavamsis around the 10th century, who left an indelible mark on the Odishan landscape with the construction of majestic temples, like the Lingaraja Temple in Bhubaneswar. The Somavamsis also played a crucial role in promoting Shaivism in the region.