The line plots show the number of hours two groups of kids spent studying last weekend.

how does the data compare for the two groups of kids?

a the 14- to 17-year olds spent more hours studying, on average, last weekend than the 10- to 13-year olds.

b the median value for the hours spent studying last weekend for the 10- to 13-year olds is greater than the median value for the hours spent studying last weekend for the 14- to 17-year olds.

c the 10- to 13-year olds spent an average of 6 hours studying last weekend.

d the range for the hours spent studying last weekend for the 10- to 13-year olds is the same as the range for the hours spent studying last weekend for the 14- to 17-year olds.