Highlight the words that require colons to be added or removed. There are 4 errors to be found. How to Reduce Exam Stress
During exam season, both your anxiety levels and academic performance are influenced by: what you consume.

Jimmy Cole, a professional dietician, says “Your focus should be on high nutrient foods that will provide you with a continuous source of energy over the whole day."

“Try to eat porridge and wholemeal toast for breakfast,” says Cole: “as these will help to prevent spikes in both your mood and your blood sugar levels.”

"In addition," says Cole, "berries of all colours are: awesome. You can juice them, make smoothies or jam from them, or just sling them into a salad or a bowl of porridge. Whatever works!”

I have established there are 3 colons that have been used incorrectly, however, what is the 4 error? and can the person who answers the question be clear and concise please. Thank you.