what is "answer bonus"

Question

after completion of code challenge there are three boxex
i.e Answer Bonus, Match XP , Total XP

we get 5xp for win , total is total earn but what is that Answer Bonus for

Answer 1

Sololearn used to assign 1 bonus point per correct answer. They changed the rules recently, apparently removing the bonus points, and haven't removed the indicator from the screen.

Answer 2

Brian so much bug in sololearn

Answer 3

is this only showcase