Compliance bushings are: a. Metallic bronze or brass. b. Plastic honeycomb. c. Fiberglass reinforced. d. Molded with voids.

The correct answer is d. Molded with voids.<br /><br />Compliance bushings are typically made from a plastic material that is molded with voids or cavities. These voids allow for the compression of the bushing when a force is applied, which helps to absorb shock and vibration. The plastic material used for compliance bushings is often a type of polyurethane or polyamide, which can be molded into the desired shape with the voids. The voids can be arranged in various patterns, such as a grid or a honeycomb, depending on the specific requirements of the application. Compliance bushings are commonly used in automotive and aerospace applications to reduce noise and vibration in engine mounts, suspension systems, and other components.