In the given case, the mother should initially listen the needs of her family members.
Explanation:
The given excerpt is a opinion based question.
It has been given that both the sisters are fighting for an orange and the mother cut the orange into two halves and gave each to both of the sisters. Now, one girl peeled the orange and threw away the pulp and the other peeled the orange and threw away the peel.
Here, the mother should have asked what both of her kids exactly wanted.
In such cases, she has to identify exactly what the children want before taking any steps by spending some time talking with each of them. Listening to the needs would avoid many problems in the family.
So, the ultimate solution is listening to the family members would avert many problems and maintain harmony.