Concept:The Qur'an is known by several names, and each name highlights a different role or quality of the divine book.
Explanation:The name that describes the Qur'an as the criterion is al-Furqan.
The word al-Furqan means "the criterion" or "the standard that distinguishes truth from falsehood."
This name is used in the Qur'an itself to show that it separates right from wrong and good from evil.
The other names given in the options do not carry this meaning.
Al-Hakim means "the Wise," al-Kitab means "the Book," and al-Huda means "the Guidance."
Therefore, the correct description of the Qur'an as the criterion is al-Furqan.
Answer:B. al-Farqan (al-Furqan)