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

[EX Q]: Animals develop either two or _ embryonic germs layers .
[EX A]: three

[EX Q]: Special relativity shows that time behaves surprisingly like the _ spatial dimensions.
[EX A]: three

[EX Q]: Rock bass are small to medium sized sunfish, reaching _ to ten inches in length.
[EX A]:
six