The correct answer is: a) Varman dynasty.
The Varman dynasty was a Hindu dynasty that ruled the Kamarupa Kingdom in the Brahmaputra Valley in northeastern India from the 4th to the 12th centuries. The dynasty was founded by Pushya Varman I, who is said to have been a descendant of the Gupta dynasty. The Varman kings were patrons of art, literature, and religion. They built many temples and monasteries, and their reign was a time of great cultural and economic prosperity. The Varman dynasty came to an end in the 12th century, when it was overthrown by the Sena dynasty.
The Pala dynasty was a Buddhist dynasty that ruled over much of eastern India from the 8th to the 12th centuries. The Pala kings were patrons of Buddhism, and they built many Buddhist temples and monasteries. The Pala dynasty came to an end in the 12th century, when it was overthrown by the Sena dynasty.
The Mlechchha dynasty was a Hindu dynasty that ruled over parts of eastern India from the 6th to the 10th centuries. The Mlechchha kings were not native to India, and they were often seen as invaders by the local population. The Mlechchha dynasty came to an end in the 10th century, when it was overthrown by the Sena dynasty.
The Salastambha dynasty was a Hindu dynasty that ruled over parts of central India from the 3rd to the 6th centuries. The Salastambha kings were patrons of Hinduism, and they built many Hindu temples and monasteries. The Salastambha dynasty came to an end in the 6th century, when it was overthrown by the Gupta dynasty.