Answer:
Since the chapter is not included, I will answer the question based on what is given. The writer should add this sentence:
Because it provides commentary that helps explain why the details presented in sentence 6 are important to the point the writer is making in the paragraph.
What is movement tracking?
Motion or movement tracking is known to be a term that connote Motion capture.
It is the act of keeping tabs or records of the movement of people or objects or people. The above answer (Option A) is correct as it helps people to know what the writer is trying to convey.
Step-by-step explanation:
hope this help if do mark brainllest pls