The decomposers in an ecosystem
(a) convert inorganic material, to simpler forms
(b) convert organic material to inorganic forms
(c) convert inorganic materials into organic compounds
(d) do not breakdown organic compounds
Decomposers feed on dead remaining parts and byproducts or living beings. These are also called scavengers of nature/environment. The decomposers in an ecosystem convert organic material to inorganic forms, which go into the soil and are once again used up by the plants. Examples of decomposers are fungi, bacteria etc.
Therefore option (B) is correct