its value is defined within stdio.h

its value is implementation dependent and cant be negative

its value should not equal the integer equivalent of any character

All of the above

before the lexical analysis

before the recognition of escape characters in strings

both before the lexical analysis & before the recognition of escape characters in strings

during the intermediate code generation phase

printf

main

IF

none of above

0 represents a false condition

non-zero value represents a false condition

1 represents a false condition

anything that is not 1 represents a false condition

static_const

pragma

volatile

immutable