Answer:
b. aluminium, hydrogen and oxygen
Explanation:
Organic compounds are generally formed by the combination of these elements: Carbon, Hydrogen, Oxygen, Nitrogen and Sulphur. This discards options a and d.
As special case, organobromides are organic compounds that contain carbon bonded to bromine. This discards option c.
Then the correct option is b. An example of an inorganic compound formed with aluminium, hydrogen and oxygen is aluminium hydroxide, Al(OH)3, which is found in nature as the mineral gibbsite.
