Sustainability-linked bonds (SLBs) (Option C) are financial instruments where issuers commit to achieving specific ESG-related targets, such as reducing carbon emissions or improving workforce diversity. If the issuer fails to meet these targets, they may face financial penalties, such as higher interest rates.

Option A (Transition bonds) are issued by companies in high-emitting sectors (e.g., oil & gas, steel) to fund their transition toward sustainability but do not necessarily include performance-based ESG targets.

Option B (Sustainability bonds) are used to finance specific green or social projects but do not always include conditional ESG performance metrics.