To improve a conclusion, a writer must bare in mind that it should not address a new topic, that is to say, it has to be a recompilation of the topics already mentioned and developed in the paragraphs, so it has to be a kind of "summary", an overall of the topics and ideas discussed. It should be concise and the reader needs to be know it is the conclusion and you are not going to keep on working on the ideas, so sometimes, it is necessary to include the words "to conclude"/ "to round up"/ "in conclusion" or something similar on order to let the reader know you are about to finish.
The answer is C, I took the same test and got that answer correct
Answer: People pointed to Tyler's odd behavior how he seemed so unaffected by his team's victory that you'd think it hadn't happened.
Explanation:
which sentence part includes the subject and main action? = I bought the materials I needed.
which sentence part tells when the action takes place? = Over the next week
which sentence part tells why the action is done? = so that I could put my plan into action.
#hope this helps