The correct answer is B. According to the American Cancer Society, tobacco poses the greatest risk for developing cancers. It was estimated that there is a 22% deaths per year due to cancer caused by tobacco use. During 2004, about 1.6 million deaths were recorded due to cancer.
60 to 100 beat in a minuto.
That is something that cant be explained you will have to go to a doctor or a medical person or physician for that .
or try avoid using a cold shower take a hot shower