Answer:
my answer is b) Tìm tỷ lệ người trưởng thành có chiều cao từ 163 (cm) đến 179 (cm).
It is the point of view of a third person.
Nominative pronouns are i, you, she, he, they, we, it
redundancy is a state of not being need at all or anymore. people when they repeat their words it can become redundant and annoying for there is no purpose to them. so which sentence is stating something not needed. Redundancy usually involves repeating something or adding in information that is completely unnecessary. so look for that.
