it is taken care of by the compiler

it is taken care of by the pre-processor

it is compiling a program based on a condition

both it is taken care of by the pre-processor & it is compiling a program based on a condition

c

c++

c-1

-c

/*Is /*this a valid */comment*/

for ( ; ; ) ;

return;

both {for ( ; ; ) ;} & {return;}

a syntax error

an execution error

printing of 12

printing of 15

1 2 4 5

1 2 4

2 4 5

none of the above