A cowherd was also a person at the bottom of the social ladder
The correct answer is ''not essential''. A story doesn't always have to have the classic conflict as seen in many stories, it may have many different elements without including a conflict.
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"She had come here in 1949 after losing everything in China: her mother and father, her family home, her first husband, and two daughters, twin baby girls. But she never looked back with regret". This implies that after losing her most beloved things, she thought it would be best just to carry on.
"I looked in the mirror above the bathroom sink and when I saw only my face staring back—and that it would always be this ordinary face—I began to cry. Such a sad, ugly girl". This implies that she is not confident with her image.