<span>They are yield signs. The individual is legally obligatory to yield the right of way to trains. Slow down, look and listen or a train, and stop if a train go. Railroad cross buck signs are located at most crossings. If there is over one track, the sign under the cross buck will display the number of paths at the crossing.</span>
Im going with c only because that answer seems logical
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Answer:
He created a trail that eventually led to New Mexico's sucsessful trade routes.
Explanation:
