The best answer in this case is C, "the researchers applied creativity to solve a problem in running an experiment".
Distributing the computing load across the global community by sharing processing power is a creative response to tackle the challenge in simulating protein folding for the experiment. This does not change or reduce the scientific merits of the experiment, so we can discount the first two answers (a & b). Answer d talks about well established scientific techniques, although the question wasn't really centered around the specific techniques, so it's not as relevant an answer as C.
Answer:
c. -1
Explanation:
When 1 frog is born, 2 frogs die, so it is +1 and -2.
Add them together to get the answer: 1 + -2 = -1
Glaciers created the edges of the continents as they moved rocks from one continent to another.
Ocean waves weathered the edges of the continents so they appeared to look like giant puzzle pieces.
Wind erosion carries pieces of rock away from the continents exposing similar rock types.
The continents were part of an ancient, single landmass called Pangea that moved apart over millions of years.
THE FIRST ONE IS CORRECT I THINK. CAN I HAVE BRAINIEST?
The strongest acid in the simulation is battery acid