#*sources state different things

"Fashionable Bears"

There is a 3×3 grid where fashionable bears are lined up. These bears seem to be lined up according to a certain rule. Now, which bear from A to D fits in the empty space?

Layton says "If you don't know the answer, try looking for hints on the package!"

These are the hints:

Hint 1:

Why are they dressed up so stylishly? There seems to be some secret.

Hint 2 :

Just one word of advice. Don't worry about the diagonal!

Hint 3:

Each bear is wearing a hat, glasses, or a ribbon. Think about whether there is any pattern regarding these fashion items.

Special Hint (Super Hint):