Answer:
I know that A contains a dependent clause because "until we get to Brooklyn" is a dependent clause which comes before the independent clause, hence why there is a comma. It looks like B and C might have typos at the end because they end in commas and not periods. So the answer is A. Hope it helps!
Answer:
Across the ash,the new ground,/and go forth in the footprints
"The" boy was walking his dog
