Correct Answer (Detailed Explanation is Below)
B.
They are generally very large and complicated function.
Detailed Explanation
Answer: (B) They are generally very large and complicated function.
An inline function is generally useful for a small function where the overhead of a normal function call may be avoided.
The compiler may replace the function call with the actual function body at the point of the call. This can reduce function-call overhead.
Inline functions are normally more suitable for small and simple functions, not very large and complicated functions.
Therefore, statement (B) is incorrect.