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

[Q]: Rattlers carry the eggs for six or _ months before giving birth.
[A]: seven


[Q]: Knives have _ cutting edges for double cutting life.
[A]: two


[Q]: Most trilliums have three, _ or six petals and are white, pink or red.
[A]:
five