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

[EX Q]: Economists divide resources into _ basic categories of land, labor, capital, and management.
[EX A]: four

[EX Q]: Flytraps spin when _ creatures can be infected.
[EX A]: no

[EX Q]: Snowmobiles can accommodate _ riders per vehicle.
[EX A]:
two