What's the difference between these three?

#1

target self
target parent
target top

#2

They help in deciding where the linked page should be opened.

_self Opens the linked document in the same frame as it was clicked (this is default)
_parent Opens the linked document in the parent frame|
_top Opens the linked document in the full body of the window|

https://www.w3schools.com/tags/att_a_target.asp

#3

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#4

Is this doubt still not cleared? What is the confusion exactly?

#5

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