The age distribution of 40 children is as follows:

Consider the following statements in respect of the above frequency distribution:
1. The median of the age distribution is 7 years.
2. 70% of the children are in the age group 6-9 years.
3. The modal age of the children is 8 years.
Which of the above statements are correct?

Options

A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3