Which excerpt from the awakening best illustrates the idea that self-determination can lead to isolation?

she was not dwelling upon any particular train of thought. she had done all the thinking which was necessary after robert went away, when she lay awake upon the sofa till morning.

she understood now clearly what she had meant long ago when she said to adèle ratignolle that she would give up the unessential, but she would never sacrifice herself for her children.

there was no human being whom she wanted near her except robert; and she even realized that the day would come when he, too, and the thought of him would melt out of her existence, leaving her alone. the water was chill, but she walked on.

the water was deep, but she lifted her white body and reached out with a long, sweeping stroke. the touch of the sea is sensuous, enfolding the body in its soft, close embrace.