A friend sent you this.

Choose one answer

1. AConcurrent antidepressant medication is presumed to be lowering the threshold progressively across treatment
2. BSeizure threshold typically falls with repeated ECT treatments, so later sessions should need a smaller electrical charge
3. CElectrode impedance rises steadily with repeated treatments, requiring more current for an equivalent effect
4. DAnaesthetic requirements increase across treatment, and this alone explains the higher charge needed to trigger a seizure
5. ESeizure threshold typically rises with repeated ECT treatments, so later sessions need a larger electrical charge