Correct! Deregulating cellular energetics
Rationale: The observation is consistent with the Warburg effect, where cancer cells rely on aerobic glycolysis for energy production even when oxygen is available, reflecting the hallmark of “Deregulating cellular energetics.”
Q4. Cancer cells in a tumour have been shown to express high levels of PD-L1, a protein that binds to PD-1 receptors on T cells. Which hallmark of cancer does this finding most directly relate to, and what is the mechanism involved?

