What set of inputs would a change manager use to develop an external environment impact...

Anexternal environment impact assessmentevaluates how external factors (market, social, regulatory) influence the change. ACMP identifiesbusiness case, vision statement, and strategic planas critical inputs. The business case explains rationale and benefits, the vision provides direction, and the strategic plan ensures alignment. Stakeholder analysis (A, B) is internal, while risk plans (D) address implementation risks. Therefore, option C is correct.

(Reference: ACMP Standard, Process Group 1 – Evaluate; Activity: Assess external environment using strategic, vision, and business case inputs.)