Which of the Following Statements A), B) or C) Is

Which of the following statements a) , b) or c) is false?

A) Recursive functions (or methods) call themselves, either directly or indirectly through other functions (or methods) .
B) Recursion might help you solve problems more naturally when an iterative solution is not apparent.
C) Sorting unique values is a fascinating problem, because no matter what algorithms you use, the final result is the same. So you'll want to choose algorithms that perform "the best"-usually, the ones that run the fastest or use the most memory.
D) All of the above statements are true.