Pinacocytes forms _.

Explanation

Options A: Pores are small openings in the epidermis that allow water to enter the sponge. Option B: Ostia are larger openings in the epidermis that also allow water to enter the sponge. Option C: Epidermis is the outer layer of cells in a sponge. It is made up of flat, plate-like cells called pinacocytes. Pinacocytes are responsible for protecting the sponge from the environment and allowing water to enter the sponge through pores. Option D: Spongocoel is the central cavity of the sponge. It is lined with choanocytes, which are cells that have flagella that create currents that draw water into the sponge.