How do i mark the brainliest on

i am not exactly sure but i think its when you look at the comment and on the top right it has a picture of a brain click that and you should get it

if two people answer it will show mark as brainliest then you just click the one you want to mark. ill take a screenshot of it when i can top show you.   : ]

hope that and feel free to ask me more questions : )brainliest? ?

the correct answer is d) nothing was there but fields of snow and mountains of ice.