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C Preprocessor - Programming

Q1:

What will be the output of the program? 
#include<stdio.h>
#define MAN(x, y) ((x)>(y)) ? (x):(y);

int main()
{
    int i=10, j=5, k=0;
    k = MAN(++i, j++);
    printf('%d, %d, %d\n', i, j, k);
    return 0;
}

A 12, 6, 12

B 11, 5, 11

C 11, 5, Garbage

D 12, 6, Garbage

ANS:A - 12, 6, 12

The macro MAN(x, y) ((x)>(y)) ? (x):(y); returns the biggest number of given two numbers. Step 1: int i=10, j=5, k=0; The variable i, j, k are declared as an integer type and initialized to value 10, 5, 0 respectively. Step 2: k = MAN(++i, j++); becomes, => k = ((++i)>(j++)) ? (++i):(j++); => k = ((11)>(5)) ? (12):(6); => k = 12 Step 3: printf('%d, %d, %d\n', i, j, k); It prints the variable i, j, k. In the above macro step 2 the variable i value is increemented by 2 and variable j value is increemented by 1. Hence the output of the program is 12, 6, 12