B. Being new to the country, it is safer for Sarah to take precautions until she gets acclimated
I believe this is the answer as the other answers take too many assumptions as the question doesn't explicitely state that Sarah has skin problems.
They occur in terrestrial ecosystems.
Answer: I would say B or D
Explanation: I know that it would cause the water to rise
He had the help of various scenarios, graphs, and diagrams.
I hope this helps!
To take precuation and inform properly about the disease and run the adequate tests to be sure of the risk that the family member runs. Hope this is useful