Correct option is C
Vikramashila was one of the most important Buddhist monastic universities in ancient India, established during the Pala dynasty.
Information Booster:
Founded by: Dharmapala, a ruler of the Pala dynasty (8th–9th century CE).
Location: Present-day Bhagalpur district, Bihar, India.
Purpose: To complement and supplement the role of Nalanda University and to address perceived declines in the quality of scholarship there.
Specialized in: Vajrayana Buddhism (Tantric form), but general Mahayana teachings were also imparted.
Structure: Contained over 100 teachers and about 1,000 students.
Famous Scholars: Atiśa Dipankara, a key figure in the spread of Buddhism to Tibet, studied and taught at Vikramashila.