The answer is c they are supposed to help protect you
Bone marrow, is one but I don't know any else off the top of my head
I'm actually in online school at the moment and I've also been behind quite a bit, my best advice is try to get in contact with the teachers, I don't know if your online school has a center where you can go in and get help but mine does and if you just tell them what you are going through I'm sure that they can help. Worse case scenario you wanted to take a few days off from school and you'll have to lie about being sick or something and they will understand. I hope I helped.
Answer:
Option (4).
Explanation:
National Public Radio is the America's publicly and privately funded media organization. This radio serves as national syndicator of around 1,000 public radio stations.
The people donate money in the NPR. The NPR has decided to give prize for the people who donates the money. The CD will be provided in the reward. This situation states that the the people who donate the money will be rewarded with the CD.
Thus, the correct answer is option (4).