Which option best completes the diagram?

Question: Which option best completes the diagram?

for every diagram their are different different options or process to make a  complete diagram . A diagram is the way through which an artist or any person who can explain the particular topic .  

Their are different - different options like-

A) first artist should have an clear idea about the diagrams which he/ she will try to make. B) Then he/ she have the ability that they can express that idea into a diagrammatic form. C) then selection of necessary things required to make diagram or picture etc.