The answer is A. i had this question yesterday
Igneous rock.
Igneous rock forms from cooled and hardened magma or lava.
"<span>The central vacuole is a cellular organelle found in plant cells. It is often the largest organelle in the cell. It is surrounded by a membrane and functions to hold materials and wastes. It also functions to maintain the proper pressure within the plant cells to provide structure and support for the growing plant."</span>
Assuming you are referring to plants when you say producers, bees help spread "pollen", or plant offspring from plant to plant, which helps to fertilize those plants and help new ones grow.