Do you think the glass transition temperature for ordinary window glass is above or below room temperature? What about the glass transition temperature for the polymer in a rubber band?
A. Tg is above room temperature for a glass and below room temperature for the polymer
B. Tg is above room temperature for a glass and above room temperature for the polymer
C. Tg is below room temperature for a glass and above room temperature for the polymer
D. Tg is below room temperature for a glass and below room temperature for the polymer