Draw an activity diagram, which takes the parameters of month/year and returns the num month of the year. in each leap year, the month of february has 29 days instead of 28. note that the following three criteria are taken into account to identify leap years: • the year is divisible by 4; . if the year can be divided by 100, it is not a leap year, unless; • the year is also divisible by 400, then it is a leap year.