The correct answer is C.
If siblings explained the use of technology and media to each other the outcome expected would be that the siblings would spend time using technology tools together. They would each know how to use the media and technology, they would probably use them at the same time, they might game together, they would interact together and help each other out.
A food-spoiling microorganism is reffered to as mold
Hmm. Let's see. I don't think it's D. And recognizing sources in stress does help, but I think the first thing is knowing that someone has too much stress, so i think the answer is A.