Final answer:
Without specific circulation numbers for the magazines mentioned, it is not possible to conclude which one has twice the circulation of Circuitry Today, making 'd. None of them' the correct answer.
Step-by-step explanation:
The question does not provide enough specific information to determine which magazine has twice the circulation of Circuitry Today. If we were given the circulation numbers for the magazines listed, we could compare them directly. However, with the information provided, which discusses the overall landscape of newspaper and magazine publication, it is not possible to infer the relative circulation of these specific publications. Therefore, the correct answer would be d. None of them, as no appropriate data has been given to make a factual comparison.
In order to determine which magazine has twice the circulation of Circuitry Today, we need to know the circulation numbers of the magazines mentioned in the options. However, the given information does not provide specific circulation data for the magazines. Hence, we cannot determine which magazine actually has twice the circulation of Circuitry Today.