Answer:
D Pennsylvania's oldest church is in Southwark, and it was opened in 1640.
Step-by-step explanation:
The word "and" introduces two ideas and appears to indicate that they are separate. While all the other choices use words such as "but" and "so", indicating that the two clauses are logically related, this one does not. However, the date the church was opened does closely relate to it being the oldest church. One would expect the word "for" rather than "and"...
I am not certain of this answer, but that is what I would imagine. I would eliminate B and C straightaway. Choice A seems to say that even though Philadelphia was founded later, its settlement Southwark was actually inhabited before.
Hope it helps :)