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

[EX Q]: Germs have _ means of locomotion execpt to attach themselves to particles of dust.
[EX A]: no

[EX Q]: Most orangutans are four to _ feet long, some can reach a length of six feet.
[EX A]: five

[EX Q]: Sheep milk has about _ percent butterfat, compared to three or four percent in cow's milk.
[EX A]:
eight