This is a question with answer options. Goal: how to calculate miles to kilometers

Which of the following methods is more reasonable for accomplishing this goal?

Choose your answer from:
+ Converting a mile length measurement to a kilometer measurement involves multiplying the length by the conversion ratio to find the result. One mile is equal to 1.609344 kilometers, so to convert simply multiply by 1.609344.
+ Converting a mile length measurement to a kilometer measurement involves multiplying the length by the conversion ratio to find the result. One mile is equal to 1.609344 kilometers, so to convert simply multiply by 2.609344....I think the answer is
Converting a mile length measurement to a kilometer measurement involves multiplying the length by the conversion ratio to find the result. One mile is equal to 1.609344 kilometers, so to convert simply multiply by 1.609344.