The last sentence contains an error. It should be “will be playing” or “have been playing” instead of “will been playing”.
Answer:
second one
Explanation:
"we'll need a detour around the flooded road" is an independent clause
"here's an alternate route" is another independent clause
there should be a . or ; in between them, or a comma + coordinating conjunction such as and, or, but, yet, so on
The answer is a, ababcdcd
