The correct answer is “C. The credit card number that you use to make an online purchase”
Flowchart - diagram created by different shapes to show flow of data
algorithm - step by step procedure to solve the problem
A flowchart is a representation of an algorithm
A network operating system is basically a computer operating system that is designed to support a workstation, and other machines that are connected in the Local Area Network. It allows access to a certain devices and machines like printer, file sharing, etc.