Let's look at the option:
A. Only wealthy nations need to repay their debts, so it slows their
progress.
-this is not true, as not only wealthy nations need to pay back debt, but all nations
B. This is no longer a problem because debt repayment was
completely erased after World War II.
-this is not true: this is still a problem, and quite a big one.
C. Both measures rob a developing
nation of money it could use to invest in social welfare improvements.
Well, debt repayment does rob developing nation of money that it could use for other purposes: so it's true! (structural adjustment doesn't rob but it maintains the state in which the nation needs to pay back the debt)- this is the correct answer!
D. They always penalize highly developed nations rather than
underdeveloped ones.
- This is not true, as both countries are penalized, and the underdeveloped ones even more so.
