The sentence that forms the participial phrase is B) Participating in Sports.
<span>I am certain you will enjoy this class-- the teacher is excellent. </span>
Answer: The complex sentence comtain a dependent clause.
Explanation: Because one of the rules of complex sentence is dependent, independent clause.
I would say the correct answer is that has an undetermined answer.
If a subject has been thoroughly covered, then there is no need for this researcher to do it all over again. If it's impossible to answer, there is no need to try. If it can be answered easily, then it doesn't really require a research. This leaves us with the last option, because a researcher might want to try and determine the answer.
Audience analysis is the term usually used.
