The family is not very strong at promoting nationalism: for once, there can be family members of other nationalities, which would promote multinationalism! so we can reject a) and c)
now, military and state religion are both found in the other options and we have to choose between school and athletics - and school is more effective! so the correct answer is D.
F'(x)=(2/3(x^2-2x-1)^-1/3 )*(2x-2) chain rule here
f'(0) is equals to substitute x with 0. Which gives
f'(0)= (2/3(-1)^-1/3)*(-2)
Plug in the calculator, and your answer is ready
