Answer:A
A way of ranking foods according to their potential to increase blood glucose.
Explanation:Glycemic index is a scale that arranges in order the amount of carbohydrates in different foods(ranging from 0 - 100) that shows how fast a food can shoot up the blood glucose level in a person.
Foods with very high glycemic index can cause a dangerous increase in the sugar levels of a person with diabetes. It can also lead to obesity since excess sugar are converted to fat.
Foods with low glycemic index have carbohydrate of 55 or less.
Example:sweet potato, carrot, legumes, lentils, oat meal etc.
Foods with medium glycemic index have carbohydrate of 56 -69.
Foods with high glycemic index have carbohydrate of over 70.
Example:cornflakes,melon, pineapple,processed foods.
I think you did some activity where you kept track of your heart rate and based on your knowledge of the circulatory and respiratory system you need to explain how your heart rate changed and why your heart rate changed.
I would simply phone or e-mail them or tell them directly about the error and say that according to my understanding (use the "I" statement) there appears to be a such and such error that needs to be corrected so that the text does not say give the wrong impression.