GQUEENTrendy Oversized Sunglasses for Women Polarized Cat Eye Cute UV400 Protection

Are the blue mirrored ones dark lenses with a blue mirror or just blue lenses?

Is Model A polarized too? Or is it just Model B that's polarized? I'm interested in Model A, but I need polarized lenses...

I want to buy one to go to beach.Are these cateye sunglasses oversized?

Could I wear them over a pair of glasses?