Item Category: (Understanding) 1. Nicotine, the drug content of cigarettes, can alter our mood in mere seconds. When it reaches our brain, we feel energized for a moment. However, after its effects, our body becomes tired and begins to crave for more. That is why a person forms the habit of smoking once he/she tries it. Smoking is difficult to quit. What purpose does this type of text serve? A. to entertain B. to compare and contrast C. to persuade D. to cite a cause and its effects​