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

[EX Q]: Adolescent suicide is approximately _ times higher than the national average.
[EX A]: three

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

[EX Q]: Children get frequent viral infections during the first _ or six years of life.
[EX A]:
five