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

[EX Q]: Weasels reaching _ to six years are regarded as fully mature.
[EX A]: five

[EX Q]: Most crops require at least _ to eight hours of full sun a day to thrive.
[EX A]: six

[EX Q]: Smoking is the single most preventable cause of mortality, responsible for _ in every six deaths.
[EX A]:
one