Answer: Yes, clicking adds/popups like the one in the image could cause your computer/electronic to catch viruses/malware.
Explanation: The cause to this is when you click an ad/popup you're exposing yourself to a potential dangerous/visious site. You're unaware to where the popup could bring you, and for all we know it could bring us to a fake site for a download which is really a visious malware to be downloaded to your device.
The answer is C. I think.
I guess the word in the blank is Standardization.
Human systems integration (HSI), a supportability issue that every program should consider, addresses such factors as accessibility, visibility, testability, and Standardization.
Answer: cashbook and erp system
Explanation: