How many characters for pushback is guaranteed per file while using ungetc(c, fp);?

Question

TuteeHUB · Accepted Answer

All characters upto NULL character

TuteeHUB · Answer

Only 1 character

TuteeHUB · Answer

Characters within 1 word

TuteeHUB · Answer

Characters within 1st new-line

1.	How many characters for pushback is guaranteed per file while using ungetc(c, fp);?
A.	Only 1 character
B.	Characters within 1 word
C.	Characters within 1st new-line
D.	All characters upto NULL character
Answer» D. All characters upto NULL character

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