D I believe. I’m not %100 percent sure.
A prototype<span> is an early sample, model, or release of a product built to test a </span>concept<span> or process or to act as a thing to be replicated or learned from. It is a term used in a variety of contexts, including semantics, design, electronics, and software programming.</span>
Answer:
Recursion is calling of a function from within that same function
Anti-spam <span>software is used to block unwanted e-mail and is available at many levels.</span>
