Single-mode step-index cable has a core diameter in the range of
∙ A. 100 to 1000 micrometer
∙ B. 50 to 100 micrometer
∙ C. 2 to 15 micrometer
∙ D. 5 to 20 micrometer
∙ A. 100 to 1000 micrometer
∙ B. 50 to 100 micrometer
∙ C. 2 to 15 micrometer
∙ D. 5 to 20 micrometer