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

[Q]: Most smokers try to quit at least _ or six times before they succeed, researchers say.
[A]: five


[Q]: Miniature cattle are classified in _ categories as measured by height at the hip.
[A]: three


[Q]: Most people have _ problems with nasal prongs.
[A]:
no