Where Would You Place the Electrode If You Were Going

Where would you place the electrode if you were going to attach the V₆ lead to it?

A) Right sternal border, fifth intercostal space
B) Third intercostal space, midclavicular line on the right thorax
C) Right leg, just distal to the medial malleolus
D) Lateral to V₅, on the left midaxillary line of the left thorax