A glass fiber composite is made up of glass fibers and:InsulationKevlarPlastic ResinSuper glueOxygen

A glass fiber composite is primarily made up of glass fibers and plastic resin. The glass fibers serve as the reinforcing component, providing strength and stiffness, while the plastic resin acts as the matrix material that binds the fibers together and distributes the load among them. This combination results in a material that is lightweight yet strong, making it suitable for various applications in industries such as automotive, aerospace, and construction.

The other options—insulation, Kevlar, super glue, and oxygen—are not typically components of glass fiber composites. While Kevlar is another type of fiber used in composites for specific applications, it does not form part of a standard glass fiber composite. Insulation can refer to materials that prevent heat transfer but is not a structural component. Super glue is an adhesive, and oxygen is not a material used in the composite itself.

Thus, the correct answer is plastic resin.