Why did nicola and jacopo have to work so hard ?

1.	Why did nicola and jacopo have to work so hard ?
Answer» The boys loved their sister. She was the only family left after the war was over. When they realised that their sister had tuberculosis of the spine, they got her admitted to a hospital. So, they work very hard to provide for medical expenses for Lucia. To collect money for their sister\'s operation.

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