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

[EX Q]: Spatial sensors work in one, two, or _ dimensions.
[EX A]: three

[EX Q]: Cats There are thirty _ recognised species of cats and a whole host of subspecies or races.
[EX A]: five

[EX Q]: Scatter plots display data points in _ or two dimensions.
[EX A]:
one