#help

Why doesn't the sentence "Some cultivars of corn are much more closely related morphologically to sorghum than to most other cultivars of corn" when rephrased turn into "Most cultivars of corn are much less closely related morphologically to sorghum than some other cultivars of corn?"

Isn't A v. B Some cultivars of corn v. Most other cultivars of corn?

#help

While I got question 5 correct, I'm confused because the context could be seen as a premise to the conclusion. I know it is context but the knowledge we get from the context trips me up. Can anyone clarify this more, please?

I'm confused on question 3. Nowhere in the premise does it say anything about pedestrians. How is it an argument?