Answer: C) subordinating conjunction.
Explanation: a subordinating conjunction is a word that joins a dependent or subordinate clause (a phrase that doesn't have complete meaning on its own) with an independent clause (it has complete meaning on its own). There are subordinating conjunctions that show a relationship between two clauses involving a transition of time or place. In this case, "after" is a subordinating conjunction joining the independent clause "Mrs. Jenkins thanked them gratefully" and the subordinate clause "After the police came to her rescue."
The elements that should be considered for writing a research plan are:
- state which your research will be about
- objectives of the research
- theory ( it is called literature review). At this stage you should mention the publications you have read, point out inconsistencies, identify what you might use, make sure to write a synthesis.
- research questions and hypothesis
- approach (briefly discuss the approach you are using)
- imformation sources
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Bossy is a denotation of the word assertive, idk if that's one of your choices though