File maintenance supports adding, modifying, or deleting records, as well as creating backup copies of the database
Its B because a primary document means something with a <span>source or evidence</span> that gives u a lot of information.
B i think sorry if I’m wrong
I'd choose B as the answer.
Our entire social lives these days are mediated and we are now leaving in a mediated era. Social media, for instance, has profoundly influenced in inter-personal communication. Options A and D contributes to the interaction and the fulfillment of peoples’ social needs and social media has become a preferred mode of communication with the rise of digital and mobile technologies. Social media has negatively impacted and reduced face to face interactions of human beings, whether business wise or through personal communication. Option C also illustrates an effect of media on human communication, which only leaves us with option B
