Answer:
C
Explanation:
I might replace "beautiful" with a different word choice but overall the grammar looks better on C, and it stays on topic.
A subordinate clause is the one which cannot exist outside of the main, full, complete clause, it cannot exist on its own.
So, the subordinate clause in this sentence is 'that ran between two commercial buildings near the downtown area'.
The answer to you question is 400
I think it is sentence D. Hope this helped<span />