A number of Lovelies mentioned that Miley Cyrus' sparkler on her left hand ring finger didn't necessarily mean anything:

I've worn rings on my ring finger (left hand btw, not right) without it being, you know, an engagement ring.
3/25/2012 3:05 PM ashleynicole

If it's on her left, I'm still not sure if it matters -- I wore rings on my ring finger for a long time (I wore rings on practically every finger, though.)
3/25/2012 3:18 PM Rebekka Holman@facebook

Just because it's on that finger doesn't automatically make it an engagement/wedding ring.
3/25/2012 6:48 PM babybug329@xanga

Well, turns out you guys were right! 

I'm not sure how to interpret this.  Which of the following Lovelyish commenters is most right:

a) Babybug329: "One could wear rings on any finger(s) the wearer chooses."
b) LaughOutLoudLauren: "It's for attention. And it's working."
c) Diary_of_a_fatman: "Why does anyone care?"
d) All of the above