A freehand curve is shown where x-axis is 'Beak Length (in millimeter)' ranges from 6 to 12 in increments of 2 and y-axis is 'Birds Observed (in percent)' ranges from 0 to 50 with an increment of 10. The curves drawn are:

1. For species A: The curve starts from (6 comma 3), goes up to (8 comma 47) and ends at (9 point 5 comma 0).
2. For species B: The curve starts from (10 comma 0), goes up to (13 comma 35) and ends at (14 point 5 comma 0).
3. For species C: The curve starts from (15.5 comma 0), goes up to (20 point 5 comma 20) and ends at (22 comma 8).