Which of the following is/are features of dishpan digit?
Dishpan digit
Finger of the child who indulges in sucking habit. On examination, it will provide valuable information about the habits. They are:

Reddened.
Exceptionally clean thumb / nail / finger.
Fibrous rough callus.
Reddened finger
Exceptionally clean thumb
Fibrous rough callus
All of the above