What does 'marred' imply?

The term 'marred' implies that something has been impaired, damaged, or spoiled in some way, indicating a reduction in its quality or perfection. This aligns with the notion of something being marred as it suggests that some flaw or defect has occurred, leading to a less-than-ideal state.

The other choices express positive outcomes: enhancing quality, preserving integrity, and highlighting features—none of which capture the negative connotation that is inherent in the meaning of 'marred.' Therefore, the correct option directly reflects the idea of something being diminished or compromised, effectively conveying the word's intended implication.