The statement “Decomposers are those organisms that recycle matter in the ecosystem” describes decomposers.
Decomposers are organisms that break down dead or decaying organisms, and in doing so, they carry out the natural process of decomposition.
The correct answer between all the choices given is the first choice or letter A. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.