I am not convinced with any explanation give in this post. I have selected D over B. here is my reasoning.
B- What if population increased exponentially.I mean 25 yrs is a lot of time. this will suggest that demand will increase but they are not participating with this increase.
D - so same thing is working even now. they have not changed why? may be they don't need it. huge assumption. but anyways better choice then B
B- What if population increased exponentially.I mean 25 yrs is a lot of time. this will suggest that demand will increase but they are not participating with this increase.
D - so same thing is working even now. they have not changed why? may be they don't need it. huge assumption. but anyways better choice then B
