Ali studied two groups of things as shown in the table below. Biodegradable Non-biodegradable Fruit Peel Gold chain Meat Polybag Dairy products Aluminium can He made the following inferences. Which one of the inferences is correct?

• A.  All non-biodegradable objects are hard.
• B.  All living things are non-biodegradable.
• C.  Biodegradable objects come only from animals.
• D.  Most things obtained from living organisms are biodegradable.