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What is the correct answer?


Read each sentence to find out whether there is any grammatical mistake error in it. The error if any, will be any part of the sentence. Make the number of that part with error as your answer. If there is 'd) No error', mark.

A. Microwaves are the principle carriers

B. of television, telephone and data transmissions

C. between stations on earth and between the earth and satellites.

D. No error

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