Answer:
Step-by-step explanation:
We could get the four options for this particular example, but we must know what happens with the variable number the value 1000.
In this case, we are going to assume four scenarios:
1) n = n - n this is equal to 0
2) n = (n - n) + n = 1000
3) n = n * 2 = 2000
4) n = n * 3 = 3000
These are simple examples, we could get these options in different ways.