Text-based stimulus: Threshold comparison table for 'online quiz proctoring review flag'. Positive class: 'session needs human review'. Columns: Threshold option, TP, FP, TN, FN, FN cost, FP cost. Row Option 1: TP 35, FP 45, TN 155, FN 5, FN cost 1, FP cost 2. Row Option 2: TP 28, FP 12, TN 188, FN 12, FN cost 1, FP cost 2. It also includes a formula callout: total cost = FN times FN cost plus FP times FP cost. For the online quiz proctoring review flag, the positive class is session needs human review. Threshold Option 1 has TP=35, FP=45, TN=155, FN=5. Threshold Option 2 has TP=28, FP=12, TN=188, FN=12. Each FN costs 1 points and each FP costs 2 point. Which option has the lower total error cost?