All it does it let you browse the internet, but whatever you look up, it isn't put on your browser history.
About. com that changed its name recently to dotdash is basically a subject directory. It is a colection of blogs articles about various general intrests of writers. Most of the information it contains is not vetted and thus does not qualify as reference point.
Answer:
b) iteration.
Explanation:
There are various algorithms which are used in computer programming. Iteration is also a type of algorithm which is used to create loops. The instructions are inserted once and then these instructions are repeated to create a loop function.