The correct answer is option 4, Dharampala. The question asks about the founder of Vikramsila University. Vikramsila University was a renowned Buddhist university that existed during the Pala dynasty in ancient India. It was known for its teachings on Buddhism and other subjects, and it attracted scholars from different parts of the world. Dharampala, the ruler of the Pala dynasty, is credited with founding Vikramsila University in the late 8th century. The university played a significant role in the development and spread of Buddhism in India. It was a center of learning and intellectual discourse and produced many eminent scholars and teachers.