Option 1: U.A.E is not the correct answer. While U.A.E is well-organized in agriculture, its major source of foreign exchange earning is oil and gas.

Option 2: Congo is not the correct answer. Although Congo is known for its agriculture, it does not have mineral oil as its major source of foreign exchange earning.

Option 3: Egypt is the correct answer. Egypt is well organized in agriculture and has mineral oil as its major source of foreign exchange earning. Egypt has significant oil and gas reserves in the Sinai Peninsula and the Western Desert.

Option 4: Iran is not the correct answer. Iran is known for its oil and gas industry and is a major exporter of oil. However, it may not be well organized in agriculture.

In conclusion, the correct answer is option 3, Egypt. While it is well organized in agriculture, Egypt also relies on mineral oil as its major source of foreign exchange earning.