A countrys GDP growth rate is 6%, the interest rate on its debt (all local currency) is 8%, and its debt-to-GDP ratio is 95%. What does the country have to do to keep its debt-to-GDP ratio below 100%?

A. Bring its primary deficit down to zero.

B. Raise its GDP growth rate to 8%.

C. Run a primary surplus of 8.05% of GDP.

D. Keep its primary deficit below 8.05% of GDP