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

[Q]: Meerkats can have one to seven babies at _ time.
[A]: one


[Q]: Albino barbs are a light yellow with _ barely visible stripes.
[A]: four


[Q]: Midrange drivers are used in multi-way speakers with _ or more driver sizes.
[A]:
three