Explanation:
In simple English, an array is a collection.
In C also, it is a collection of similar type of data which can be either of int, float, double, char (String), etc. All the data types must be same. For example, we can't have an array in which some of the data are integer and some are float.
B.................................
QR codes were created to make a way for people to easily scan codes to get to a website. So you could scan (example) a movie poster to go to the website that has advertisements and tickets.
Answer:
It depends on what the company will be willing to use and it also depends on their budget
Explanation: