Complex carbohydrates are a type of carbohydrate that digests slowly compared to simple carbohydrates. Complex carbohydrates are also called polysaccharides, because they consist of a number of sugar molecules bonded together. Complex carbohydrates (in moderation) are considered healthier than simple carbohydrates because they do not spike blood sugar levels, but help to maintain proper blood sugar levels. Complex carbohydrates are abundant in wholegrain cereals and pastas, sweet potatoes, brown rice, etc.
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.
