WosalbaWomens Mock Turtleneck Long Sleeve Stretch Fitted Underscrubs Layer Tee Tops

How tight are the armholes?

Is this see-through?

If you go by the size chart you would need to have a pretty small bust to fit these; it says that XL bust is 34.3 inches, is this correct?

There are no sizes options to select. Do you just send random sizes?