Question: Information:  - Maz'al ibn Jabir ( 18 ? ? -- 1897 , styled Muaz us - Sultana ) was the son of Jabir al - Kaabi and succeeded him as tribal leader of the Bani Kaab and Sheikh of Mohammerah upon his father 's death . This was confirmed by an Imperial Qajar farman ( executive order ) . Some accounts state that he was assassinated by his younger brother , Khaz'al Khan , while others state that this was done by a palace guard under orders from Khaz'al .  - The araB gene promoter is a bacterial promoter, activated by e L-arabinose binding.  - Khorramshahr (, Arabic: , also Romanized as Khorramchahre and Khurramshahr; formerly known as Mohammerah and also known as Khorram Shahr bdn and Khnn Shahr; formerly, Al-khoramshahr, khunin shahr, and khoramshahr) is a city in and the capital of Khorramshahr County, Khuzestan Province, Iran. At the 2006 census, its population was 123,866, in 26,385 families.  - Jabir al-Kaabi (178~  1881) was the leader of the "Bani Kaab" Arab tribe and the Sheikh of Khorramshahr ("Mohammerah") during the 19th century. He had two sons, Maz'al Jabir al-Kaabi, who succeeded him as tribal leader, and Khaz'al ibn Jabir al-Kaabi.     Given the information above, choose from the list below the object entity that exhibits the relation 'country of citizenship' with the subject 'maz'al jabir al-kaabi'.  Choices: - arab  - iran
Answer:
iran