please help

The ages of the members of four teams are summarized below. Answer the questions about them. Team A: The range of ages is 12 and the mean age is 45. Team B: The range of ages is 5 and the mean age is 42. Team C: The range of ages is 6 and the mean age is 46. Team D: The range of ages is 4 and the mean age is 49. (a) Based on the information above, which team has the youngest members on average? Team A X O Team B ? O Team C 5 O Team D (b) Based on the information above, which team's ages have the most variability? Team A Team B O Team C O Team D