and the duty to not sacrifice investment return or take on additional investment risk to promote non-pecuniary benefits or goals. (B) Use of non-pecuniary factors for investment alternatives Notwithstanding paragraph (A), if a fiduciary is unable to distinguish between or among investment alternatives or investment courses of action on the basis of pecuniary factors alone, the fiduciary may use non-pecuniary factors as the deciding factor in the selection or retention of an investment if the fiduciary documents— (i) why pecuniary factors were not sufficient to select or retain a plan investment or investment course of action