The author's perspective can be seen in the line where the author shows his or her opinion on the subject covered in the text.
We can arrive at this answer because:
It is very common for argumentative and persuasive texts to offer the author's opinion on the subject discussed.
This opinion refers to the author's perspective, which is the position he or she will use to build their arguments and encourage the persuasion of readers.
This type of perspective is usually presented right at the beginning of the text, as it is important to establish the direction the text will take.
Since you didn't show the text this question refers to, I'm not able to answer your question exactly, but you can use the information above to help you find your answer.
More information about the author's perspective is at the link:
Composition is important to a painting because it brings focus to a main point you are trying to get across in your painting. You want a focal point which is the composition :) hope this helps!
