Chewing tobacco typically has significantly more nicotine than a cigarette. On average, a dose of chewing tobacco can contain about 2.5 to 5 times more nicotine than a single cigarette, depending on the brand and specific product. Therefore, the most accurate statement from your options is:
Chewing tobacco has 2.5 times more nicotine than a cigarette.
However, some products may have even higher nicotine concentrations, so it's important to note that this can vary widely.