the Gupta empire allowed subjects to practice their own religion
Explanation:
Although the Gupta rulers practiced Hindu rituals and traditions, it is clear from these discoveries that the empire was characterized by religious freedom. Evidence of a Buddhist university within the region is further proof of the peaceful coexistence between Hindus and Buddhists.
To cause a source to be biased means that it is influenced by your opinion or another factor that is not factual. Bias can take away from the credibility because it is not completely true, as a source should be.
