Final answer:
The correct compression rate for CPR on an 8-year-old should be 100 to 120 compressions per minute, with option b, 98, being the closest available choice but still below the recommended range.
Step-by-step explanation:
The most appropriate compression rate for an 8-year-old during CPR is 100 to 120 compressions per minute. The options provided do not match this range, but the closest would be option b, which is 98 compressions per minute. However, it is still slightly below the recommended range. The compression rate for both children and adults should be at least 100, but not exceed 120 compressions per minute, according to CPR guidelines.