Whose Relationship Is LEAST Likely to End

Multiple Choice

Whose relationship is LEAST likely to end?

A) Sally and Melinda's,because they have low social network overlap
B) Greg and Sander's,because they have high network density
C) DeAnda and Kevin's,because they have high substitutability in their social network
D) Greer and Tameca's,because they have low substitutability in their social network