Final answer:
The 'software' definition of theatre refers to the people and activities of theatre, including the collaborative efforts of all individuals involved in bringing a narrative to life on stage.
Step-by-step explanation:
The "software" definition of theatre typically refers to the elements that constitute the essence of theatre as an art form, beyond the physical components. Among the options given, B) The people and activities of theatre most accurately defines the software aspect of theatre. This includes the collaborative efforts of actors, directors, designers, and crew who bring the narrative to life. Theatre involves human performance, a crafted narrative of conflict and resolution, and the use of audiovisual elements to engage the audience. Theatre is not static; it requires the creativity and interaction of individuals to create a unique, live experience each time a production is performed.