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Only _____character of pushback is guaranteed per file when ungetc is used.

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Only _____character of pushback is guaranteed per file when ungetc is used.

(a) Two

(b) One

(c) Many

(d) Zero

I have been asked this question by my college director while I was bunking the class.

This interesting question is from Ungetc topic in portion Input and Output in C of C

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The correct option is (b) One

Explanation: None.

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