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

[EX Q]: All insects have _ body sections, the head , thorax , and abdomen.
[EX A]: three

[EX Q]: Most turbines have either two or _ blades.
[EX A]: three

[EX Q]: Ozone is a chemically unstable molecule composed of _ oxygen atoms.
[EX A]:
three