Read the following passage and answer the question.
Since ancient times, it is the rule that a person should be held liable for his own mistake. In the words of Plato: "a person should be held for his own sins". But, in the thirteenth century, in England, it was for the first time, established that the master would be liable for his servant's or slave's torts only when there is an express command of the master to the servant's wrong.
By the end of the 17th century, this concept of liability was found inadequate due to the rise in commercial transactions. A new development took place when Sir John Holt, in the case of Tubewille v Stamp (1697), held that "the master would be liable for his servant's tort if he had given his implied command". There is a maxim 'qui facit per alium facit per se' which means 'he who does an act though another is deemed in law to do it himself, on which the vicarious liability of principal for the tort of his agent is based. Usually, a person is liable for his tortious acts. But if he shares certain types of relationships with another person, that person might be liable for the wrongful act.
A principal is vicariously liable for the tort of his agent committed within the course of his authority. An agent is a person who, otherwise than as a servant and otherwise than as an independent contractor, whether by way of contract or only by way of request, conducts some business or performs some act or series of acts on behalf of another, i.e. principal. The liability of the master for the tort which has been committed by his servant is based on the maxim 'respondent superior' i.e. superior is responsible. In law, it is established that he who employs another to do something does it himself, or he who does an act through another is deemed in law to do it himself.
Question :
The medieval command theory of vicarious liability is justified based on which of the following legal maxim?
Laissez-faire
qui facit per alium, facit per sei
Respondeat Superior
Both (b) and (c)
In the passage it is mentioned that in reality the medieval command theory of vicarious liability is justified based on the legal maxim qui facit per alium, facit per sei which means he who acts through another is deemed to act himself.