Question Regarding the Certified Examination Tasting Grid Shet

When you take the certified exam and use the Tasting Grid Worksheet, what instruction is given on how to answer the "Explain Why" section of grape, origin and climate? There seems to be so little space to answer. Also, it looks like there is room to write six possible grape varieties. Do you then circle your final answer?

We're trying to use the sheet in our tasting group as practice for taking the exam and wanting to make this as useful of a tool as possible.

Thank you,
Jeff