In this task you are given a short story and a question regarding that story. You must answer the question based on the events of the story. Try to use the same words in the story to answer each question. You should completely answer the question in a short answer. Do not include information that is unnecessary to answer the question.

Tan wanted to make her mom's famous chicken soup. But she was not as good a cook as her mom, and it came out wrong. Tan gave it another try, but she changed a few things. She used chicken broth, pre made, and added store-bought noodles. This time, Tan's soup came out tasty and delicious!
Why did She use chicken broth ,?
Tan changed a few ingredients on her mom's chicken soup.