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

[Q]: Porphyritic textures form primarily because of _ rates of cooling.
[A]: two

[Q]: Postpartum blues are common during the _ months after childbirth.
[A]: three

[Q]: Most people change careers at least _ times in their work life and have several different jobs.
[A]:
three