Concept:During the Prophet's lifetime, the revelation of the Qur'an was still ongoing.
So the Companions avoided writing down Hadith to prevent any confusion with the Qur'anic text.
Explanation:The Qur'an was revealed in parts over many years and was preserved through both memorisation and writing.
Hadith records the sayings and actions of the Prophet (S.A.W).
If Hadith were written on the same materials along with the Qur'an, there was a real danger of mixing the two.
Therefore, the Prophet (S.A.W) discouraged the writing of Hadith during his lifetime.
This was not because he opposed writing permanently, nor because the narrators could not write.
It was solely a precautionary measure to keep the Qur'an pure and unaltered.
After the Prophet's death, and when the Qur'an was fully compiled, the companions later arranged the writing of Hadith.
Answer:D. Of fear that it might be mixed up with the Qur'an.