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

[EX Q]: Polymer clay is formed to metal spring back barrettes, and are available in _ different styles.
[EX A]: five

[EX Q]: Most children recover from croup in _ to five days.
[EX A]: three

[EX Q]: Boolean operations is a method of combining _ meshes together.
[EX A]:
two