B - rading about the remains of an ancient statue.
While both A and C are very romantic, both would take ages for a professional working archaeologist to dig up anything useful in a reasonable amount of time. The most effective thing that he can do is read primary sources and based on those decide where a temple stood.
C. A university designs a new building to ensure that astronomers will be able to easily observe the night sky
So you have information ready.
The answer is that in soome counties, laws require retail stores to be colsed on sundays
