Bronwyn has used an inappropriate transition at the beginning of sentence 4. Which word or phrase should replace By the way in this sentence?

The correct word or phrase that could replace "By the way" in sentence 4 would depend on the context or what information Bronwyn is attempting to introduce. Without further information, it is difficult to provide a specific answer. However, some possible options could be:

- Additionally,
- Furthermore,
- Moreover,
- Also,
- In addition,