The map shows a railway to Washington that was built in the 1800s. Which STATE was the point of origin (starting point) of this railroad line?

I see Washington as the starting point of the railroad line.

Explanation:

I see washington and a long track though montana

not sure if Portland is in Oregon, but if it isn't, it's close enough to washington

id say bottom left to top top left to bottom right and middle to middle

explanation:

just like you man, i personally think its either c or d

explanation:

but good luck with the test man