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

[EX Q]: Psychiatrists say one out of _ people are mentally ill.
[EX A]: four

[EX Q]: Rattlers carry the eggs for six or _ months before giving birth.
[EX A]: seven

[EX Q]: Most corporate bonds have a maturity of _ years or less.
[EX A]:
five