Which type of fiber-optic cable is the best for very high speed data?
∙ a. Single-mode step-index
∙ b. Multimode step-index
∙ c. Single-mode graded-index
∙ d. Multimode graded-index
∙ a. Single-mode step-index
∙ b. Multimode step-index
∙ c. Single-mode graded-index
∙ d. Multimode graded-index