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

[Q]: Allergic rhinitis is the most common allergic disease, with one in _ Canadian adults affected.
[A]: five


[Q]: Pangolins walk on all _ of their stout limbs, which are adapted for digging.
[A]: four


[Q]: Communion is that which is shared between the _ persons of the Holy Trinity.
[A]:
three