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

[EX Q]: Stroke is our nation's number _ killer, and a leading cause of disability for older adults.
[EX A]: three

[EX Q]: All loci have _ or two alleles.
[EX A]: one

[EX Q]: French women are _ times more likely to have accidents and commit suicides.
[EX A]:
five