In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Most women experience a menstrual period _ to six weeks after a miscarriage.
four

Monsoons coming every three to _ years can add almost a foot of water to the mountain's surface.
seven

Magellanic penguins are the largest of the _ ringed penguins and they are also the most numerous.

four