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

[EX Q]: Rodents have _ toes on their front feet and five on the hind feet.
[EX A]: four

[EX Q]: Roundworms are fairly large worms that can grow to be _ or five inches long.
[EX A]: four

[EX Q]: Mature Plants can grow up to _ meters tall.
[EX A]:
three