Please help i am marking brainliest (no links pls) is 'c' the right answer

Is made of materials that are poor conductors, such as glass, plastic, or rubber. they are used in an attempt to keep an electrical current within safe boundaries. for example, the plastic coating on an electrical wire is and is designed to keep the electricity in the wire

The choke panel is used to close the hydraulic choke on the choke skids? true or false

Human space exploration is expensive and dangerous.why should nasa continue human spaceflight?