5. Aside from ceilings, modern blues now have insulating materials made-up of Styrofoam sandwiched between two sheets of aluminum. What purpose does this insulating material serve?
a. The insulating material keeps the temperature inside the house low and prevents it from rising up.
b. The insulating material keeps rats and other insects away from the ceiling because it becomes hot once exposed to the heat of the sun
c. On a hot day, it prevents heat transfer from the roof to the interior part of the house. On a cold day, it prevents heat lost.
d. The material adds aesthetic qualities to the ceiling so that it doesn't look dull and lifeless.​