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Input / Output - Programming

Q1:

Point out the error in the program? 
#include<stdio.h>

int main()
{
    char ch;
    int i;
    scanf('%c', &i);
    scanf('%d', &ch);
    printf('%c %d', ch, i);
    return 0;
}

A Error: suspicious char to in conversion in scanf()

B Error: we may not get input for second scanf() statement

C No error

D None of above

ANS:A - Error: suspicious char to in conversion in scanf()

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