Ayuda por favor :(((

Si tú tarea es poner un inciso, la mejor opción sería la c. Pero si no es así tú tarea pues la cague y me lleve puntos en base de ello, pido disculpas :(

when you are going to explain a procedure,   the first thing to do is to name the parts or the apparatus you are going to describe in terms of how it or they function. also it is important to know who is going to operate it and the abilities this man/woman requires to manage it.