Read the passage and choose the best answer to the questions.

Once, there was a boy named Boly. He lived with his aged grandmother in Kanchi Village. His grandmother always woke up very early in the morning and made little buns and cakes. She sold them in the market place. With the money she earned, she sent Boly to school.

Boly was a good boy. He was an orphan. He loved his grandmother a lot. After school, he always went home quickly. Then, he would have his lunch and do his homework. In the evenings, Boly would go round the village selling the cakes his grandmother made. Boly and his grandmother lived quite happily.

One day, Boly's grandmother fell ill. She could not make any more cakes. Boly now had to look for work. He went from house to house doing odd jobs. It was in one of these houses that a kind gentleman asked Boly why he was working at such a tender age. After listening to Boly's story, the man said that he wanted to adopt Boly. He was willing to take care of Boly's grandmother too. From then on, Boly and his grandmother led a very happy life.

Boly had to do odd jobs because________.