Explanation

Imam Zohri is historically recognized for his role in compiling and transmitting hadith from Basra. Imam Hasan Al-Basri was a prominent scholar but not specifically credited as the first compiler of ahadis at Basra. Imam Nisai compiled major works later and is known for Hadith collections, not primarily for being the first collector at Basra. Option D is incorrect because a specific figure is attributed to this role.