Answer:A. Testimony
Explanation:when someone knows something about what happened in the case held in court or they had witnessed what happened; In order to actual testify on what they know they are called on the stand and they have to raise their hand as a sign to swear an oath before the can give their testimony in court.
Answer:
An Operating System (OS) is an interface between a computer user and computer hardware. An operating system is a software which performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers.
Explanation:
I think the best answer would be the last option. Social media allow customers to express their views while conventional media do not. In social media, the viewers can freely right their comments and testimonials about a product. However, in conventional marketing like advertisements in televisions, the viewers cannot make direct comments to the company.
Excel Macros, or .xlsm, stores automated steps for repetitive tasks.
