3.1.1 Option 1: Don't use the diagram at all
It is quite possible to write a good answer to the question without using the diagram. What do you think are the advantages and disadvantages of not using the diagram?
If you are someone who is not a ‘diagrams person’, then not using the diagram would save you struggling with something that makes you feel uncomfortable.
For those who do feel able to use diagrams, this particular diagram is quite complex to draw as it uses realistic images. You could redraw the diagram, with words replacing the drawings (see Figure 15), but in many cases a realistic diagram will be required, in which case you'll need to think about Option 2.
In terms of the advantages, it is generally agreed that diagrams save words, so using the diagram leaves you extra words with which to gain marks elsewhere. I would also argue that diagrams can express a situation very powerfully and clearly, but you may want to wait until you have examined the options below before deciding whether you agree with me. (Of course, if you're specifically asked for one or more diagrams, then Option 1 isn't an option!)