The correct answer here is c - An effective conclusion to an
informational text should rephrase the thesis in a new way, that takes
into account both the original intentions of investigation written in
the thesis, and things that have been learnt since this was written.
The true sentence is the following one:
B. Individual productivity is necessary for group productivity.
Imagine a work in a group, where the people all receive their personal tasks that they will later incorporate into the group work. If each person is not productive on their own task then the whole group will not be productive!
Well i'll write it again...To persuade the Thebans that he will be a strong and resolute leader.
Hope this helps! :)
B The cost of similar products varied in different locations