instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Gerbils get reproductive when they reach sexual maturity at the age of _ months.
answer:
three

question:
Optical isomers differ in the arrangement of _ groups around a chiral carbon.
answer:
four

question:
Human existence has _ aspects - physical, mental and spiritual.
answer:
three