Concept:An exclusive series defines class intervals where the upper limit is excluded from the class frequency.Explanation:In an exclusive series, each class interval includes values from the lower limit up to, but not including, the upper limit.For example, in the interval 0−10, values from 0 to just below 10 are counted; 10 belongs to the next interval.Thus, the upper limit is not included in the class frequency.Answer:Option C: In which upper limit is not included in class frequency.