Asample was taken of the salaries of 20 employees of a large company. the following is a boxplot of the salaries (in thousands of dollars) for this year. based on this boxplot, which of the following statements is true? a. the interquartile range is about $20,000.b. the minimum salary is $20,000. c. the range of the salaries is about $75,000.d. the median salary is about $40,000.