How many interstate highway systems does washington state have?

Hello!

I-5, which runs from Canada to Oregon (north-south), through Seattle.

I-90, which runs from the Puget Sound to Idaho (east-west), and starts in Seattle.

I-82, which runs from central Washington to Oregon (north-south).

Then there are I-205, I-405, I-182, and I-705. These are all auxiliary routes

the answer. is b

hope this : d