Final answer:
Following a meal high in simple carbohydrates, increased blood sugar levels (a) are most likely to occur in the next 1-2 hours.
Step-by-step explanation:
Following a meal high in simple carbohydrates, the most likely occurrence in the next 1-2 hours is increased blood sugar levels (a) as the carbohydrates are broken down into glucose and enter the bloodstream.
The excess glucose stimulates the release of insulin from beta cells in the pancreas, which helps to transport glucose into cells and lower blood sugar levels.
However, it may take longer than 1-2 hours for blood sugar levels to return to normal.