What is a common application of metallic foil in cooling systems?
A) Metallic foil is often used as a reflective barrier to reduce heat transfer and improve cooling efficiency in thermal insulation applications.
B) Metallic foil is used as a heat conductor to enhance the heating element's efficiency.
C) Metallic foil is employed to create a vacuum seal to prevent cooling systems from overheating.
D) Metallic foil serves as a protective cover for electronic components to prevent electrical short circuits.