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R has how many atomic classes of objects?

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R has how many atomic classes of objects? (a) 1 (b) 2 (c) 3 (d) 5 I got this question in an interview for job. This question is from Data Types in division Nuts and Bolts and Getting Data In and Out of R Programming Select the correct answer from above options

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Right answer is (d) 5 For explanation: The most basic type of R object is a vector.

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