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

[Q]: Most polyps cause no symptoms and take five to _ years to change to cancer.
[A]: seven


[Q]: Corms are undifferentiated, uniform, and contain _ rings when cut apart.
[A]: no


[Q]: Autism is a developmental disability that appears within the first _ years of a child s life.
[A]:
three