Hello.
Describing to someone your height; It would be nonsense telling you have -1 meter, for example.
Describing your age; An age of -3 years is meaningless.
Counting the number of inhabitants in a city. Again, a city with -3000 inhabitants can not exist.
Answer:
Step-by-step explanation:
5 years

10 years

486 months:

round those as you please
The answers you could use are both the second and the forth. But mostly the fourth.