In the article$$Debt $-$ What Is and Should Never Be$,$ an association of lower GDP growth rate$$was attributed to which$$of the following?$$

Question $24$ options:

a$)$

When the debt to GDP ratio is below $30\%$

b$)$

When advanced economies become emerging economies.

c$)$

The article did not find a relationship of lower growth and debt

d$)$

When the debt to GDP ratio is above $90\%$