1. An include fi le can contain (A) anything that makes sense to the compiler, (B) only preprocessor directives, (C) B plus function prototypes only, (D) C plus variables of primary data types only....

1. An include fi le can contain (A) anything that makes sense to the compiler, (B) only preprocessor directives, (C) B plus function prototypes only, (D) C plus variables of primary data types only.

2. The directive #ifdef (x <>

3. Pick the odd operator out: (A) |, (B) &&, (C) ^, (D) . 17.8 Pick the odd directive out: (A) #ifdef, (B) #else, (C) #elif, (D) #endif.