The correct way to complete the sentence is to add the sentences:
- Research question
- Broadening his research question
What is a Research Question?
This refers to the use of questions to try to find out more about a particular phenomenon by asking precise questions.
Hence, we can see that from the complete text, it should be noted that the research question Bernard needs to improve and this can be done by broadening the questions.
Read more about research questions here:
https://brainly.com/question/25257437
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