Questions 46-50 are based on the following information: According to a recent study, cell phones are the main medium for teenagers to stay connected with friends and family. It is estimated that 90% of older tens (aged 16-19) and 70% of younger teens (aged 13-15) own a cell phone. Suppose 60% of all teens are older teens. 46. If a teen is randomly selected, what is the probability that he/she is an older teen? A. 0.9 B. 0.7 C. 0.6 D. 0.4