The main idea could possibly be that the article is letting you know the benefits or not benefits about letting us use technology care for our parents if i understand correctly
Plagiarizing is the act of not giving Ann author or person recognition for their work and using it as your own. The second one is definitely plagiarized because there is no place that specifically references a source. The third one would also be considered playwriting because it does not use the correct notation for quoting a source. That makes the fist one not plagiarized.
B. Daily is an adverb of time. Adverb of time tells you when, how long, a how often a certain thing happens. In the sentence, daily tells you how frequent the newspaper is delivered.