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

Q: Sexual selection has _ components, intrasexual competition and intersexual selection.

A: two
****
Q: Humans begin laughing at _ to three months of age.

A: two
****
Q: Multidisciplinary planning is the interweaving of two or _ disciplines.

A:
three
****