How does the play build tension and conflict between the two sisters

According to a different source, this question refers to the play Antigone.

Antigone and Ismene are the two sisters that appear in this play, and the two are presented as being quite different. The play builds tension and conflict between the two sisters by showing the different perspectives that they have of the burial of their brother.

Antigone is shown as being more confident, and having stronger ideas. She also feels compelled to act according to these convictions. On the other hand, Ismene is more fearful, and she finds it a lot more difficult to act according to her principles when these go against the law. While Antigone believes that her brother deserves a burial, regardless of what the law states, Ismene dislikes the idea of committing an illegal act and risking her life.