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

[EX Q]: Violets usually have _ sepals at the base and have five petals.
[EX A]: five

[EX Q]: Beavers have an average of _ young once a year.
[EX A]: four

[EX Q]: Females like to care for three to four babies at a time because _ cub is a waste of time.
[EX A]:
one