19. Which of the following cellular responses does NOT normally occur as part of the unfolded protein response (UPR)? (A) Upregulation of ER chaperone proteins (B) Temporary inhibition of global protein synthesis (C) Expansion of the endoplasmic reticulum (D) Induction of apoptosis when ER stress is severe or prolonged (E) Increased transport of misfolded proteins to lysosomes