To answer this question, you need to know the capital of Sudan. Let's go through each option to understand why it is correct or incorrect:
Option A) Abuja - This option is incorrect because Abuja is the capital of Nigeria, not Sudan.
Option B) Mogadishu - This option is incorrect because Mogadishu is the capital of Somalia, not Sudan.
Option C) Addis Ababa - This option is incorrect because Addis Ababa is the capital of Ethiopia, not Sudan.
Option D) Khartoum - This option is correct because Khartoum is the capital of Sudan.
The correct answer is D) Khartoum.