_______________ is normally used for the manufacture of refrigerator components and transistor parts?

_______________ is normally used for the manufacture of refrigerator c

1.	_______________ is normally used for the manufacture of refrigerator components and transistor parts?
A.	Polypropylene
B.	Polystyrene
C.	Polyester
D.	Polyurethane
Answer» C. Polyester