An elderly woman comes to the dentist with a toothache. The tooth has an abscess and needs to either have root canal treatment in order to restore the tooth or have the tooth extracted. The dentist extracts the tooth without giving the woman the option of having a root canal. The dentist's decision is based on the fact he doesn't think the woman can afford a root canal. Which ethical principle is violated?

Justice

Veracity

Autonomy

Non maleficence