Compared with an endotoxin, would a bacterial exotoxin generally be more likely to function after it had been significantly heated?

A) Yes, because exotoxins are very heat stable compared to endotoxins.
B) Yes, because exotoxins are proteins and non-living but endotoxins are part of the bacterial cell wall.
C) No, because exotoxins are carbohydrates and endotoxins are proteins.
D) No, because exotoxins are heat-labile and less resistant to heating than endotoxins.