Carbohydrates require a prolonged process of digestion in order to be broken down into glucose and, therefore, to maintain proper blood sugar levels.
a. simple
b. complex

Complex carbohydrates require a prolonged process of digestion in order to be broken down into glocose and therefore, help to maintain proper blood sugar. Complex carbs are those carbs in meat like chicken, beef, and pork meat. These type of carbs needs prolonged digestion. So the answer to your question is letter B - complex.