1. Chance of reducing misuse by the fellow programmers

2. Data loss prevention

3. All of the above

4. polymorphism

1. str1 = str2

2. strl.equalsignoreCase(str2)

3. strl==str2

4. All of the above

1. This program will incur some compile errors.

2. No compile error but cannot be run

3. It is not a valid C program

4. None of the above

1. 0

2. 1

3. Underfined

4. -1

1. preprocessor directive and resolved by compiler at the beginning phase of compilation

2. inline function

3. constant declaration

4. normal c statement