Which situation presented during scene 2 of the play Antigone is intended to highlight the conflict between loyalty to family and civil obedience?

The correct answer for this question is this one: "C. Ismene refuses to help her sister bury Polyneices." That is the situation that is presented during scene 2 of the play Antigone is intended to highlight the conflict between loyalty to family and civil obedience.

Here are the following choices.
A. Antigone is engaged to Creon’s son, Haemon.
B. Eteocles is buried with honors.
C. Ismene refuses to help her sister bury Polyneices.
D. Creon becomes king.