Answer: Your topic is too broad to manage all the information.
Your position on a topic or issue changes as you conduct research.
You discover aspects of a topic that you had not previously considered.
Explanation: As you continue your research, you may have to change the focus because your opinions change, or more variables come into view as you continue. Sometimes, if you do not organize your research and narrow it down, you may have too much information to deal with. Then you need to change the focus in order to have a more tidy flow of information.
