John is the owner and manager of an apartment building. Concerned about the safety of his tenants, John hires SafetyGuys, Inc., to provide security services in his building. SafetyGuys is a corporation formed for the purpose of providing security guards to private businesses. In making the arrangement, John deals directly w/ SafetyGuys' chief executive officer, a man named Richard, who explains to John that the security guards will be employees of SafetyGuys who will receive their instructions from their supervisor, another SafetyGuys employee. However, any agreement w/ SafetyGuys would be subject to John's specific requests concerning the conduct and duties of the guards, and John could make any further requests as he chose during the life of the agreement.

During the first week that a SafetyGuys guard was on duty in John's building, the guard mistook Peter, a tenant, for an intruder. A scuffle ensued and the guard beat Peter severely, causing significant physical injuries. Peter sues John for money damages for his injuries.

What is the relationship between John and the security guards?

(A) John is their principal and they are his agents.
(B) John is their principal and they are his co-agents
(C) John and the security guards are arm's-length contract parties.
(D) John and the security guards have no legal relationship.