Use the diagram above to answer this question. Points E6 and E5 are respectively equilibrium points for

A. Do and So; Do and S2
B. D1 and S2; D2 and So
C. D2 and S1; D2 and S2
D. D2 and So; Do and S2

Correct Answer:

Option C – D2 and S1; D2 and S2