Answer:
The correct option is B.
Explanation:
It is given that In a population of 1000 individuals, 100 new individuals were born and 200 individuals died over the course of 1 year.
We need to find the population growth rate of this population.
Rate of birth =

Rate of death =

The formula for rate of change is
Rate of change = Rate of birth - Rate of death
Rate of change = 0.10 - 0.20
Rate of change = -0.10
The required equation is 0.10 - 0.20 = -0.10.
Therefore, the correct option is B.