The following metacharacters cannot be used with basic regular expressions: (can have more than 1 answer)
a. [a-za-z0-9]
b. [[: blank: ]]
c. |
d. $

assuming you are in the home page.

1) go to the upper right hand corner

2) click on your "profile picture"

3) go down to "edit profile"

4) it should be titled as "edit your profile", click on "profile picture"

5) choose a file

6) press "change"

you're profile picture is updated

~

i think the answer is a or d

answeroperating system;