Answer:
Option B
Step-by-step explanation:
el - the
margen - margin
a - to
lo - it
largo - long
de - from
una - one
carretera - road
o - or
autopista - freeway
es - to be
el - the
carril - lane
The margin along a road or highway is the lane.
Your answer is option B or "el carril."
Hope this helps.