There are so many examples for that in different areas, like TPBi experiment carried out in our lab recently.Here's one link: http://www.alfa-chemistry.com/tpbi-cas-192198-85-9-item-282866.htm
The anwer is C. It makes more sence and is more mature.
The stem
1.is responsible for the transport of food and water from the roots and leaves to the other parts of the plant
2. The stem holds the plant upright or erect
3. It also stores the nutrients
4. It also produces new living tissues
Hope this helps!!!
B is the correct answer due to the fact that applied sciences means adding to already developed technology there scientist are creating another drug to cure human diseases by mixing different elements through the process of an experiment