Answer:
Many occupations use mathematics, even if it is not the primary focus of a given job.
Explanation:
Think about software developers, they develop apps, websites, and other things, but they also use math in the process. Scientists use statistics. Mechanics use math to make sure their measurements are right. Therefore, I think your best bet would be
A. Many occupations use mathematics, even if it not the primary focus of a given job.
It sounds like you are looking for a network. If a node can not find a network to connect to, then it cannot connect.
Answer:
Iteration
Explanation:
The insertion sort is based on repetition of comparing one data array (or element in a list) with the others at its left to reorganize it, normally following a size criteria (from small to big or the other way around).
At each iteration, the algorithm takes one element and compares it one by one to the others until it fit the specified criteria. Later on, it creates a space, moving the other elements, to insert it. Later, it goes to the next element and the iteration repeats all the way through. It has some advantages over other sorting algorithms because it is easy to deploy and program it in many different languages, but at the same time it can be terribly slow when sorting large amount of data.