TheESG Investment Strategiessection of the Official Training Manual (OTM) describes systematic ESG approaches, including long–short equity models. It states:

“Quantitative ESG long–short strategiestypically involve takinglong positions in top-decile ESG-rated stocksandshort positions in bottom-decile ESG-rated stockswithin the same sector or region, to neutralize market beta while capturing ESG-related alpha.”

This method uses ESG scores as a differentiating signal while maintaining overall factor neutrality (e.g., size, sector). The manual further notes that these strategies “allow investors to isolate ESG-driven return differentials, removing market or style bias.”

Sectors are not typically shorted directly (eliminating option C), and “non-ESG-rated” stocks (option A) would not fit within systematic ranking models since such firms lack data for quant selection.

Hence, the verified and precise answer isB, supported by direct methodological reference.

????Reference:2021-Final-Book.pdf, Chapter 8 — ESG Integrated Portfolio Construction (Quantitative ESG Approaches section).