What is the lower limit of the modal class of the following distribution:

0-10	10-20	20-30	30-40	40-50	50-60
16	13	6	11	27	18

The modal class is the class interval with the highest frequency. The lower limit of this modal class is the starting value of the interval.

The class interval 40-50 has the highest frequency of 27. Therefore, the modal class is 40-50.

The lower limit of the modal class (40-50) is 40.

Thus, the correct answer is (d).