A mission statement defines the organization's purpose and primary objectives, often focusing on what the organization does and how it operates in the present. In contrast, a vision statement outlines the long-term aspirations of the organization—what it aims to become in the future. The mission provided—"To meet or undercut all our competitors' prices"—is focused on price competitiveness, which is a tactical approach rather than a strategic aspiration.

Let’s analyze each option:

A. To offer the best value office fitting service: While this aligns somewhat with the mission, it is more of a value proposition or operational goal rather than a visionary statement. It lacks the aspirational and long-term focus that defines a vision.

B. To reduce the cost of office fitting by 5%: This is a specific, measurable objective, but it is too narrow and tactical to qualify as a vision. Visions are broader and not tied to specific metrics.

C. To increase the company's market share: Increasing market share is a strategic goal, but it is still an intermediate step toward achieving something greater. It does not capture the overarching ambition of the company.

D. To be the premier office fitting company: This option reflects a long-term aspiration and aligns with the characteristics of a vision statement. It expresses the desire to achieve leadership and excellence in the industry, which is consistent with the mission of being competitive on price while aiming for a higher status.

According to the BCS Business Analysis Framework , a vision statement should inspire and guide the organization toward its ultimate goal. Therefore, D is the most appropriate choice.