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Which is true about function tolower?

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in C by (52.2k points)
Which is true about function tolower?

(a) The function tolower is defined in <ctype.h>

(b) Converts an uppercase letter to lowercase

(c) Returns other characters untouched

(d) None of the mentioned

This question was addressed to me during an interview.

My query is from Standard Input & Output in chapter Input and Output in C of C

1 Answer

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Best answer
Right option is (d) None of the mentioned

Best explanation: None.

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