Dispersion-shifted single mode fibers are created by

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Dispersion-shifted single mode fibers are created by . . . . . . . . .

A. Increasing fiber core diameter and decreasing fractional index difference

B. Decreasing fiber core diameter and decreasing fractional index difference

C. Decreasing fiber core diameter and increasing fractional index difference

D. Increasing fiber core diameter and increasing fractional index difference

Answer: Option C

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