Concept:Hadith is grouped by scholars according to the degree of authenticity of each narration.
Explanation:The standard classification of Hadith is into three main groups.
Sahih (authentic): a hadith with an unbroken chain of reliable narrators and no hidden defect.
Hasan (good): a hadith that is authentic but slightly lower in certainty than Sahih.
Da'if (weak): a hadith whose chain or text contains a weakness that prevents it from being accepted.
The authenticity of a hadith depends on the reliability of its reporters and the soundness of its text.
This three-group division is the widely accepted basic classification in Hadith sciences.
It is the simplest arrangement used by scholars when studying the status of prophetic narrations.
Answer:Hadith is classified into three groups, therefore the correct option is B.