The primarily used ESG indices:

The CFA Institute confirms thatESG indices have been developed for both equity and fixed income asset classes, providing investors with performance and risk data. While the specific criteria and weightings of these indices can vary widely (so option A is incorrect), and comprehensive back-testing across multiple cycles is often limited (option C is also not uniformly true), these indices do consistently extend acrossboth equities and bondsto enable portfolio-level ESG integration and benchmark comparisons.