Final answer:
A security license under the Private Security and Investigation Services Act is valid for two years and must be renewed before expiry.
Step-by-step explanation:
Under the Private Security and Investigation Services Act, a security license is valid for two years (Option B). Anyone working in the field of private security or as a private investigator is required to have a valid license. These licenses must be renewed prior to expiration, and the process often involves completing a renewal application and providing any updated information as required by the governing body. The licensing ensures that individuals in the security and investigation fields are qualified and adhere to the regulations set forth by the Act. It's imperative for security personnel to be aware of the validity period of their licenses to avoid working illegally.