Polyurethane foam is of great concern during fire for which of the following reasons?
A) Polyurethane foams are used in carpet padding and bedding, pillows, furniture, shoe soles, medical sprints, and automobile seat cushioning.
B) Polyurethane foams have an extremely high heat-release rate.
C) Polyurethane foams produce prodigious quantities of nitrogen dioxide.
D) All of these