1. In the directive #define TEMP 12.5, the type of 12.5 is (A) double, (B) fl oat, (C) implementation dependent, (D) none of them.
2. For the directive #define VOLUME = X * X * X, where X is also a defined constant, the preprocessor (A) replaces X with its defined value, (B) replaces VOLUME with its defined value, (C) A and B, (D) none of them.
3. If macro A uses macro B in its replacement text, then (A) A must be defined before B, (B) B must be defined before A, (C) the sequence is irrelevant, (D) the sequence is implementation-dependent.