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Which of the following metacharacter is used to refer to any character?

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Which of the following metacharacter is used to refer to any character?

(a) %

(b) @

(c) .

(d) All of the mentioned

The question was asked in semester exam.

I need to ask this question from Regular Expressions and Text Variables topic in division Getting Data of Data Science

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Best answer
The correct option is (c) .

To explain I would say: A dot in function name can mean any of the following: nothing at all; a separator between method and class in S3 method.

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