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

[Q]: Bilinear interpolation uses a weighted average of the _ nearest pixels.
[A]: four


[Q]: Cormorants are monogamous and breed in colonies of up to _ thousand pairs.
[A]: three


[Q]: Every muscle is made up of _ types of fibers.
[A]:
two