The box plots summarize the masses, in kilograms, of two groups of seals. Based on the box plots, which of the following statements must be true?
The median mass of Group A is less than the median mass of Group B.
The mean mass of Group A is greater than the mean mass of Group B.
The median mass of Group A is greater than the median mass of Group B.
The range of Group A is less than the range of Group B.
