Which description matches multimode fiber?

Which description matches multimode fiber?

• A. Core 8–10 μm, NA 0.20–0.275
• B. Core 50–62.5 μm, NA 0.20–0.275
• C. Core 50–62.5 μm, NA 0.05–0.10
• D. Core 4–6 μm, NA 0.30–0.50

Answer: (B)