Question 8

C: Backward

The term 'retrograde' in the given context suggests a regression or moving backward in terms of progress or development. Therefore, 'backward' is the most fitting synonym as it encapsulates the idea of moving in the opposite direction of advancement.

A) Illusory

The word 'illusory' refers to something that is deceptive or not real. This does not align with the meaning of 'retrograde', which relates to a decline or reversal in progress rather than something being an illusion.

B) Unexplained

'Unexplained' indicates something that lacks a clear explanation or rationale. This is not synonymous with 'retrograde', which implies a specific direction of decline or regression, rather than ambiguity or lack of clarity.

C) Backward

'Backward' accurately captures the essence of 'retrograde', as both terms imply a movement away from progress or a return to a previous state. This makes it the best synonym in the context provided.

D) Progressive

The term 'progressive' denotes forward movement or advancement, which is the opposite of 'retrograde'. Therefore, it cannot be considered a synonym and contrasts sharply with the intended meaning in the context.

Conclusion

The word 'backward' is definitively the correct synonym for 'retrograde', as it conveys the concept of moving in reverse or regressing. All other options fail to capture this essential meaning, either by presenting an unrelated idea or by opposing the notion of decline and regression.