Which is true about isaplpha(ch), where ch is an int that can be repre – McqOptions

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1.	Which is true about isaplpha(ch), where ch is an int that can be represented as an unsigned?char or EOF.isalpha(ch) returns
A.	0 if ch is not alphabetic
B.	Non-zero if ch is alphabetic
C.	Both 0 if ch is not alphabetic & Non-zero if ch is alphabetic
D.	Non-zero if d is alphabetic
E.	None of these
Answer» D. Non-zero if d is alphabetic

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